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Journal articles on the topic 'Vertical Carrier Phase Shift Modulation'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Xiao, Gong*. "RESEARCH ON MODULATION STRATEGY OF CASCADED STATCOM BASED ON CPD-SPWM." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 5, no. 6 (2016): 33–39. https://doi.org/10.5281/zenodo.54647.

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For multi-level structure , PWM technology is one very critical aspect, it relates to the quality and efficiency of the system output voltage cascaded STATCOM. Based on the principle of multiple modulation strategies analyzed and compared, including vertical carrier phase shift modulation, the carrier level phase shift modulation technique, the unipolar vertical multiplier carrier phase shifting CPD-SPWM technique as Cascaded STATCOM modulation techniques. Vertical carrier modulation technique can make STATCOM relatively low switching frequency to achieve a relatively high equivalent switching

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2

Trop, Claire C., James LaBelle, Philip J. Erickson, Shun-Rong Zhang, David McGaw, and Terrence Kovacs. "Tracking traveling ionospheric disturbances through Doppler-shifted AM radio transmissions." Atmospheric Measurement Techniques 18, no. 8 (2025): 1909–25. https://doi.org/10.5194/amt-18-1909-2025.

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Abstract. Six specialized radio receivers were developed to measure the Doppler shift of amplitude modulation (AM) broadcast radio carrier signals due to ionospheric effects. Five were deployed approximately in a circle at a one-hop distance from an 810 kHz clear-channel AM transmitter in Schenectady, New York, and the sixth was located close to the transmitter, providing a reference recording. Clear-channel AM signals from New York City and Connecticut were also received. The experiment confirmed detection of traveling ionospheric disturbances (TIDs) and measurement of their horizontal phase

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Shen, Yue, Ling Tan Zhang, Shi Li Cui, Yi Nao Su, Li Min Sheng, and Lin Li. "Coherent Demodulation of the Mud Pressure DPSK Signal and Analysis of Noise Impact on the Signal Demodulation." Applied Mechanics and Materials 278-280 (January 2013): 1107–13. http://dx.doi.org/10.4028/www.scientific.net/amm.278-280.1107.

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Based on the mathematical analysis of band transmission signal coherent detection theory and mud pressure DPSK signal modulation process, by establishing the coherent detection mathematical model of mud pressure DPSK signal, this paper studies the practicability of broadband mud pressure DPSK signal coherent detection. By analyzing the noise impact on input signal parameter of demodulation system, based on probabilistic statistics theory and coherent demodulation mathematical model, the bit error rate and antinoise ability of mud pressure DPSK signal is studied. Theoretical analysis and numeri

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Zhou, Lisha, Hongyu He, Jianfeng Sun, and Baojun Lin. "Phase-Shift Laser Ranging Technology Based on Multi-Frequency Carrier Phase Modulation." Photonics 9, no. 9 (2022): 603. http://dx.doi.org/10.3390/photonics9090603.

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Compared to traditional phase laser ranging technology, phase-shift laser ranging technology based on carrier phase modulation has significant advantages, such as simple modulation and demodulation, as well as simultaneous ranging and velocity measurements with high precision. To expand the range and ensure the ranging precision in carrier phase modulation in phase-shift laser ranging technology, we propose a phase-shift laser ranging system based on multi-frequency carrier phase modulation. We analyzed the effects of the stagger coefficient, modulation depth, and signal-to-noise ratio on the

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M.V., Subramanyam. "Sinusoidal Pulse Wiedh Modulation Techniques." Advancement and Research in Instrumentation Engineering 2, no. 3 (2020): 1–6. https://doi.org/10.5281/zenodo.3609031.

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<em>The five level inverter is most widely used inverter in medium and high voltage applications as it has many advantages compared higher level inverters. Modulation is the technique or process in which the characteristics of the carrier wave or signal such as amplitude, frequency and phase are changed in accordance with the instantaneous value of the original or message signal. . Modulation techniques are of two types they are continuous wave modulation and pulse modulation. When the carrier wave is a continuous in nature, the modulation is known as continuous wave modulation or analog modul

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Zhou, Sui Hua, Shi Min Feng, and Zhi Yi Chen. "A Single Side-Band Modulation Circuit in Underwater Electric Current Communication." Advanced Materials Research 712-715 (June 2013): 1737–40. http://dx.doi.org/10.4028/www.scientific.net/amr.712-715.1737.

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On the basis of the carrier has a low frequency in underwater electric current communication, carrier phase shift network, low frequency wide band phase shift network and multiplier circuit were designed to realize the single side-band (SSB) modulation. The circuits were designed and debugged. Through testing the actual circuits, sideband suppression ratio obtains 36dB which can satisfy the underwater electric current communication system. It will be stated reference on actual application for SSB modulation with low carrier frequency using phase shift method.

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Gao, Xiangchuan, Xupeng Zhang, Linlin Duan, et al. "A Carrier Parameter Decoupling Algorithm for High Order APSK Modulation." Wireless Communications and Mobile Computing 2021 (December 16, 2021): 1–10. http://dx.doi.org/10.1155/2021/1685260.

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In satellite communication, carrier parameter estimation usually uses a serial structure, and the accuracy of frequency offset estimation (FOE) will greatly affect the accuracy of phase offset estimation (POE). A new carrier synchronization mode (NCSM) can realize the decoupling of carrier FOE and POE to a certain extent, but this mode is based on multibase phase shift keying (MPSK) modulation analysis, the decoupling performance is poor when uses in amplitude phase shift keying (APSK) modulation, and the decoupling performance of NCSM has a low tolerance of frequency offset. An improved carri

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He, Hongyu, Jianfeng Sun, Zhiyong Lu, et al. "Phase-shift laser range finder technique based on optical carrier phase modulation." Applied Optics 59, no. 17 (2020): 5079. http://dx.doi.org/10.1364/ao.387196.

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9

Wang, Qingzhe, Yanwei Du, Guang Yang, and Hongyang Liu. "A Method Based on Phase-shifting Carrier for Reducing DC-link Current Harmonics in Dual Three-phase PMSM Drive under Open-phase Conditions." Journal of Physics: Conference Series 2450, no. 1 (2023): 012011. http://dx.doi.org/10.1088/1742-6596/2450/1/012011.

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Abstract The All-Electric of modern military equipment has become an important trend, in the field of aircraft the traditional servo control focus on the exact control of the motor. With the development of power electronics technology, a high-power motor has expanded into a multiphase kind which cast off the limitation of traditional three-phase motors. The multiphase motor has more control resources and fault-tolerant control ability under the fault condition, which has practical meaning for high safety and high-reliability applications in an airborne environment. The multiphase motor can be

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10

Zhou, Xuanyi, Wei Juin Choy, Abraham M. Alcaide, et al. "Common DC-Link Capacitor Harmonic Current Minimization for Cascaded Converters by Optimized Phase-Shift Modulation." Energies 16, no. 5 (2023): 2098. http://dx.doi.org/10.3390/en16052098.

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This paper investigates the influence of a constant carrier phase shift on the DC-link capacitor harmonic current of cascaded converters used in fuel-cell and mild-hybrid electric vehicles. In these applications, a DC-DC converter can be adopted between the battery and the motor drive inverter in a cascaded structure, where the two converters share the same DC-link. Since the DC-link capacitor of such a system represents a critical component, the optimization of the converter operation to limit the current stress and extend the lifetime of the capacitor is an primary objective. This paper prop

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Zheng, Zheng, and Fei Yan. "Research on Cascade Multilevel Inverter Control Strategy." Applied Mechanics and Materials 273 (January 2013): 439–43. http://dx.doi.org/10.4028/www.scientific.net/amm.273.439.

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Due to easy realization and high equivalent carrier frequency, the Carrier Phase-Shifted pulse width modulation technology has been applied in the multilevel modulation circuit. Space vector modulation technology has a wide range application because it is easy to realize and has the advantage of high DC voltage utilization. However, when it is directly used in a cascade inverter system, it becomes difficult to be realized because of the too many synthesis voltage vectors and switch states. This paper puts forward a new control strategy based on the technology of carrier phase-shift and vector

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12

Huadong, Wang, and Cai Xv. "Carrier Level Layered Modulation Method can Filter Out the Harmonics of Cascaded H - Bridge Topology." Open Electrical & Electronic Engineering Journal 9, no. 1 (2015): 216–24. http://dx.doi.org/10.2174/1874129001409010216.

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Analysis of the reason of cascade H-bridge inverter topology using carrier phase shift modulation method cannot compensate the harmonic, using carrier level layered modulation method can solve the problem of cascade H-bridge topology that it cannot compensate harmonic problems. Experimental results show that the modulation algorithm can effectively reduce the modulation delay, improve the control bandwidth, it can also make the harmonic compensation capacity increase from 5 times to 21. The scope of the application of STATCOM is greatly increased in the grid.

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Wang, Xuchen, Hao Yan, Giampaolo Buticchi, Chunyang Gu, and He Zhang. "Equivalent Phase Current Harmonic Elimination in Quadruple Three-Phase Drives Based on Carrier Phase Shift Method." Energies 13, no. 11 (2020): 2709. http://dx.doi.org/10.3390/en13112709.

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Multiphase drives are entering the spotlight of the research community for transportation applications with their high power density and the possibility of high fault tolerance. The multi three-phase drive is one of the main types of multiphase drives that allows for the direct adoption of commercial three-phase converters and high control flexibility. The elimination of high-frequency current harmonics will reduce the flux linkage harmonics, torque ripple, vibration and noise in machine drives. Therefore, this work introduces a new method to the modelling of equivalent phase current in multi

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14

mohamed, H. R., A. A. Nagy, and M. Abdelaziz. "Filter bank multi-carrier based offset ternary phase shift keying(FBMC/OTPSK)." Journal of Physics: Conference Series 2616, no. 1 (2023): 012041. http://dx.doi.org/10.1088/1742-6596/2616/1/012041.

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Abstract Filter bank multi-carrier (FBMC) is a popular researched technique for wireless communications that offers several advantages over traditional orthogonal frequency-division multiplexing (OFDM) systems. In this paper, we propose a FBMC system using offset Triangle phase shift keying (TPSK) modulation (FBMC/OTPSK), analyze its bit error rate (BER) performance via additive white Gaussian noise (AWGN) channel, and compare it to that of conventional FBMC using offset quadrature amplitude modulation (FBMC/OQAM) system. Simulation results show that the proposed FBMC/OTPSK system considerably

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15

Shantha Selva Kumari, R., and K. Seyatha. "Performance evaluation of hybrid modulation techniques for high speed radio over fiber communication system." International Journal of Modern Physics C 30, no. 09 (2019): 1950070. http://dx.doi.org/10.1142/s0129183119500700.

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In Radio over Fiber (RoF) technology, the optical network capacity is integrated with the wireless network. The main objective of this work is to enhance the performance behavior of optical fiber communication system in terms of BER, Received Power and Q-Factor. The proposed combined modulation technologies, such as Pulse Amplitude Frequency Modulation (PAFM), Differential Phase Shift Keying Amplitude Modulation (DPSKA), Offset Quadrature Phase Shift Keying Amplitude Modulation (OQPSKA), Quadrature Amplitude Frequency Modulation (QAFM), Frequency Phase Modulation (FPM) and Pulse Amplitude Phas

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16

Nguyen, Vinh-Quan, and QuangTho Tran. "Reduction of common mode voltage for cascaded multilevel inverters using phase shift keying technique." Indonesian Journal of Electrical Engineering and Computer Science 21, no. 2 (2021): 691. http://dx.doi.org/10.11591/ijeecs.v21.i2.pp691-706.

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Demand of cascaded multilevel inverters in industries of electric drives and renewable energy is increasing due to their large-scale capacity and high voltage. The modulation technique of inverters significantly affects the power quality of the inverter output voltage. This paper proposes a new method of carrier wave modulation using the phase shift keying technique for cascaded multilevel inverters. The phase of a constant frequency carrier wave is changed at an accurate time by an input sinusoidal control signal. This modulation technique is simply implemented and only needs a small memory.

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17

Nguyen, Vinh-Quan, and Quang-Tho Tran. "Reduction of common mode voltage for cascaded multilevel inverters using phase shift keying technique." Indonesian Journal of Electrical Engineering and Computer Science 21, no. 2 (2021): 691–706. https://doi.org/10.11591/ijeecs.v21.i2.pp691-706.

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Demand of cascaded multilevel inverters in industries of electric drives and renewable energy is increasing due to their large-scale capacity and high voltage. The modulation technique of inverters significantly affects the power quality of the inverter output voltage. This paper proposes a new method of carrier wave modulation using the phase shift keying technique for cascaded multilevel inverters. The phase of a constant frequency carrier wave is changed at an accurate time by an input sinusoidal control signal. This modulation technique is simply implemented and only needs a small memory.

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18

Chen, Yugang, Shuxiang Song, Zhixian Liao, Dan Luo, Dong Lin, and Duqu Wei. "A New Carrier Phase-Shift Modulation Based on Switching the Displacement Angle." Energies 15, no. 21 (2022): 7954. http://dx.doi.org/10.3390/en15217954.

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In this paper, a new carrier phase-shift (CPS) modulation method based on switching the displacement angle (SDA) is proposed to compromise the harmonic content of the output voltage and the circulating current. It can be used in medium- and low-voltage applications where the AC-side voltage and DC-side current of the modular multilevel converter (MMC) are required to have low harmonic content simultaneously. In this proposed SDA-based CPS modulation, the carrier displacement angle of the MMC with N submodules in each arm is periodically switched between the values of 0 and π/N degrees, so that

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19

Das, Binoy, Rahul Mukherjee, Gour Chandra Mandal, and Ardhendu Sekhar Patra. "40 Gbps Downstream Transmission Using DQPSK and 20 Gbps Upstream Transmission Using IRZ Modulation in Full-Duplex WDM-PON." Journal of Optical Communications 40, no. 3 (2019): 255–60. http://dx.doi.org/10.1515/joc-2017-0022.

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Abstract A full duplex WDM-PON system is designed and demonstrated based on carrier reusing scheme and by employing differential quadrature phase shift keying (DQPSK) modulation in downlink and inverse return-to-zero modulation in the uplink to transmit 40 Gbps and 20Gbps data-rate respectively. Three Mach-Zehnder modulators are used sequentially to realize the 67 % carrier suppressed return to zero (CS-RZ) DQPSK modulation in the downlink transmission. Very low bit error rate values @10‒9 and clear eye-diagrams are observed over a 40 km single-mode-fiber transmission in our proposed full-dupl

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20

Paramonov, A. A., V. M. Nguyen, and M. T. Nguyen. "Multi-task neural network for solving the problem of recognizing the type of QAM and PSK modulation under parametric a priori uncertainty." Russian Technological Journal 11, no. 4 (2023): 49–58. http://dx.doi.org/10.32362/2500-316x-2023-11-4-49-58.

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Objectives. Automatic modulation recognition of unknown signals is an important task for various fields oftechnology such as radio control, radio monitoring, and identification of interference and sources of radio emission. The paper aims to develop a method for recognizing the types of signal modulation under conditions of parametric a priori uncertainty, including the uncertainty of carrier frequency- and initial signal phase values. An additional task consists in estimating the offset values of the carrier frequency or signal phase at the initial stage of the recognition process.Methods. A

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21

J, Padmini, and V. Nanammal. "FPGA Implementation of Digital Modulation Schemes Using Verilog HDL." International Journal for Research in Applied Science and Engineering Technology 10, no. 9 (2022): 560–67. http://dx.doi.org/10.22214/ijraset.2022.46596.

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Abstract: This paper describes the design and development of an FPGA-based digital Modulation Scheme for high-resolution Communication Application. We are focusing on implementation of Verilog based code simulation for fundamental and widely used digital modulation techniques such as Binary Amplitude-shift keying (BASK), Binary Frequency-shift keying (BFSK), Binary Phase-shift keying (BPSK) and Quadrature Phase Shift Keying(QPSK). In this work the idea of sinusoidal signals that have been generated is plain sailing in nature and based on fundamentals of signal sampling and quantization. Such c

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Sadchenko, Andrey, and Oleg Kushnirenko. "QPSK-Modulation Modem Invariant to the Rotation of the Signal Constellation Plane." Electrical, Control and Communication Engineering 14, no. 2 (2018): 149–56. http://dx.doi.org/10.2478/ecce-2018-0018.

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AbstractIn order to increase the efficiency of dedicated frequency channels, i.e. to increase the specific data transfer rate, multipositional quadrature phase shift keying (QPSK, aka 4-PSK) should be used. The problems with QPSK signal demodulation is a rotation of the signal constellation plane by an angle multiple of 90° and a slow response of the carrier oscillation recovery scheme. The study considers the existing methods for eliminating the phase ambiguity of the recovered carrier frequency in typical QPSK modems, and identifies the shortcoming of a low-speed response oscillation recover

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Al-Rawi, Muhanned. "Data-Aided Carrier Recovery with QPSK Modulation." Scientific Bulletin 24, no. 1 (2019): 14–22. http://dx.doi.org/10.2478/bsaft-2019-0002.

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Abstract Digital communication has proven to be the most efficient method of data transmission especially where long distances are involved. This led to the invention of more sophisticated methods of communication ranging from mobile handset communication to more advanced satellite communication. The speeds of passing information have been improving over the years and real time video communication has been made possible with digital devices. Various methods of digital data transmission are employed based on the information to be transmitted. This paper focuses on carrier recovery in digital co

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Sun, Yanxia, Chikomborero Shambare, and OdunAyo Imoru. "OFDM Network Optimization Using a QPSK Based on a Wind-Driven Genetic Algorithm." Sensors 22, no. 16 (2022): 6174. http://dx.doi.org/10.3390/s22166174.

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Quadrature phase shift keying (QPSK) is a digital modulation technique that transmits data at a constant frequency whilst varying the phases of the carrier signal. QPSK is one of the fundamental modulation schemes for orthogonal frequency division multiplexing systems (OFDM). It is a stable modulation technique with good spectral efficiency. However, during transmission, the carrier signal can undergo numerous phase changes. This creates phase ambiguity problems at the receiver end. This results in inter-symbol interference (ISI) and a high bit error rate (BER). In this paper, the wind-driven

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Li, Minwei, Yang Yu, Yang Lu, et al. "Optical Microfiber All-Optical Phase Modulator for Fiber Optic Hydrophone." Nanomaterials 11, no. 9 (2021): 2215. http://dx.doi.org/10.3390/nano11092215.

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In order to meet the needs of phase generated carrier (PGC) demodulation technology for interferometric fiber optic hydrophones, we proposed an optical microfiber all-optical phase modulator (OMAOPM) based on the photo-induced thermal phase shift effect, which can be used as a phase carrier generation component, so as to make the modulation efficiency and working bandwidth of this type of modulator satisfy the requirements of underwater acoustic signal demodulation applications. We analyzed the modulation principle of this modulator and optimized the structural parameters of the optical microf

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YANG, MENG-HSIANG, K. N. HUANG, C. F. HUANG, S. S. HUANG, and M. S. YOUNG. "A HIGHLY ACCURATE ULTRASONIC MEASUREMENT SYSTEM FOR TREMOR USING BINARY AMPLITUDE-SHIFT-KEYING AND PHASE-SHIFT METHOD." Biomedical Engineering: Applications, Basis and Communications 15, no. 02 (2003): 61–67. http://dx.doi.org/10.4015/s1016237203000109.

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A highly accurate Binary Amplitude-Shift-Keyed (BASK) ultrasonic tremor measurement system for use in isothermal air is developed. In this paper, we present a simple but efficient algorithm based upon phase shifts generated by three ultrasonic waves of different frequencies. By the proposed method, we can conduct larger range measurement than the phase-shift method and also get higher accuracy compared with the time-of-flight (TOF) method. Our microcomputer-based system includes two important parts. One of which is BASK modulation signal generator. The other is a phase meter designed to record

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27

Zhiqi, Xu, and Ai Xiancang. "Carrier phase shift modulation and voltage equalization control strategy in modular multilevel converter." Journal of Physics: Conference Series 1550 (May 2020): 062019. http://dx.doi.org/10.1088/1742-6596/1550/6/062019.

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28

Nayeemuddin, M., T. Bramhananda Reddy, and M. Vijaya Kumar. "Level Shifted Discontinuous PWM Algorithms to Minimize Common Mode Voltage for Cascaded Multilevel Inverter Fed Induction Motor Drive." International Journal of Power Electronics and Drive Systems (IJPEDS) 9, no. 2 (2018): 504. http://dx.doi.org/10.11591/ijpeds.v9.i2.pp504-518.

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This paper presents combinations of level shifted pulse-width modulation algorithm with conventional discontinuous pulse-width modulation methods for cascaded multilevel inverters. In the proposed DPWM a zero sequence signal is injected in sinusoidal reference signal to generate various modulators with easier implementation. The analysis four various control strategies namely Common Carrier (CC), Inverted Carrier (IC), Phase Shifted (PS) and Inverted Phase Shift (IPS) for cascaded multilevel inverter fed induction motor drive has been illustrated. To validate the proposed work experimental tes

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Vikas, Agrawal, Basak Koushik, and Kumar Bahl Rajesh. "Analytical research on optical phase shift modulation scheme with maximum modulation efficiency for analog and digital signals." i-manager's Journal on Communication Engineering and Systems 11, no. 2 (2022): 1. http://dx.doi.org/10.26634/jcs.11.2.19048.

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This paper presents the analytical research and characterization of optical Binary Phase Shift Keying (BPSK) for single-tone sinusoidal and digital signals. The mathematical analysis and simulation for optimal modulation depth are proposed in this paper for maximum efficiency of the output modulated signal. The modulation depth is analysed with suitable Radio Frequency (RF) drive voltage for message signal and the effect of modulation depth on carrier suppression and higher order harmonics over fundamental tone is analysed theoretically and with simulation. To achieve phase modulation in this

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30

Zhang, Meng, and Zhisong Bie. "Research on single carrier frequency domain equalization system based on FQPSK modulation." ITM Web of Conferences 17 (2018): 03012. http://dx.doi.org/10.1051/itmconf/20181703012.

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Feher-patented quadrature phase shift keying (fqpsk) modulation is proposed for single-carrier frequency domain equalization (sc-fde). this paper puts forward a new method modulation called cc-bcd-fqpsk. the fqpsk signal is oversampled to make that the discrete fourier transform (dft)/ inverse dft (idft) processing of it can be applied for sc-fde. the methodology for maintaining waveform continuity with a cyclic prefix (cp) is presented. wrap-around viterbi algorithm (wava) is suggested for demodulation after equalization at the receiver. simulation results show that sc-fde system based on cc-

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Wei Li, Ning Hua Zhu, Li Xian Wang, and Hui Wang. "Broadband Phase-to-Intensity Modulation Conversion for Microwave Photonics Processing Using Brillouin-Assisted Carrier Phase Shift." Journal of Lightwave Technology 29, no. 24 (2011): 3616–21. http://dx.doi.org/10.1109/jlt.2011.2173462.

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Huszaník, Tomáš, Ján Turán, and Ľuboš Ovseník. "On the 100 Gbps DWDM with Optical Carrier Suppression Modulation." Open Computer Science 11, no. 1 (2021): 218–23. http://dx.doi.org/10.1515/comp-2020-0104.

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Abstract This paper investigates the transmission performance of 16-channel DWDM (Dense Wavelength Division Multiplexing) system with two complex Optical Differential Quadrature Phase Shift Keying modulator configurations using 2 LiNb MZM (Mach-Zehnder Modulator) and 3 LiNb MZM. The link performance is evaluated for 100 Gbps data rate per channel in a total 750 km single mode fiber link. The perfomance is analyzed in terms of forward power, reflected power and bit-error rate of the received signal. From the simulation results we prove, that the link performance can be improved by adopting the

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Singh, Surinder, Mark Crispo, Jean-François Bousquet, and Shadi Aljendi. "A Janus compatible software-defined underwater acoustic multiple-input multiple-output modem." International Journal of Distributed Sensor Networks 17, no. 4 (2021): 155014772110106. http://dx.doi.org/10.1177/15501477211010663.

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This article describes the implementation of a multiple-input multiple-output acoustic communication link in shallow water conditions to enable a software-defined acoustic modem with a maximum transmission rate of 20 kbps in a 5-kHz bandwidth. The reliability improvement of a low-complexity Alamouti space–time block code is evaluated to improve the diversity in a high-rate transmission mode using single carrier modulation, as well as in a low-rate transmission mode relying on continuous-phase frequency-shift keying. Using measurements in realistic subsea conditions, the effect of the spatial c

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Li, Xin, Qiufan Cheng, Shiliang Guo, and Zhiquan Li. "Research of Gate-Tunable Phase Modulation Metasurfaces Based on Epsilon-Near-Zero Property of Indium-Tin-Oxide." Photonics 9, no. 5 (2022): 323. http://dx.doi.org/10.3390/photonics9050323.

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In this paper, we proposed a reflection phase electrically tunable metasurface composed of an Au/Al2O3/ITO/Au grating structure. This antenna array can achieve a broad phase shift continuously and smoothly from 0° to 320° with a 5.85 V applied voltage bias. Tunability arises from field-effect modulation of the carrier concentrations or accumulation layer at the Al2O3/ITO interface, which excites electric and magnetic resonances in the epsilon-near-zero region. To make the reflected phase tuning range as wide as possible, some of the intensity of the reflected light is lost due to the excited s

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Li, Peng Fei, Jin Ping Li, and Xin Zhao. "Design and Simulation of 2PSK Modem." Applied Mechanics and Materials 321-324 (June 2013): 2914–18. http://dx.doi.org/10.4028/www.scientific.net/amm.321-324.2914.

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Based on the principle of the modulation and demodulation of Binary Phase Shift Keying(2PSK),a mathematical model for the modulation and demodulation of the 2PSK was built and the carrier signal was designed using the technology of Direct Digital Synthesis (DDS).Then,a model to simulate the hardware circuit of the modulation and demodulation of 2PSK was built,and then analyzed in Matlab and Modelsim.Simulation results show that the model not only properly realizes the function of 2PSK modulator-demodulator,but it also simplifies the hardware circuit and reduces the programming time.

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Im, Jun-Hyuk, Yeol-Kyeong Lee, Jun-Kyu Park, and Jin Hur. "Shaft Voltage Reduction Method Using Carrier Wave Phase Shift in IPMSM." Energies 14, no. 21 (2021): 6924. http://dx.doi.org/10.3390/en14216924.

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Common-Mode Voltage (CMV) induces shaft voltage and bearing current due to the electrical interaction with the parasitic capacitance of the motor. CMV, shaft voltage, and bearing current are considered the major causes of bearing fault. Motor fault in a traction system poses a risk of accidents. Therefore, it is necessary to reduce the CMV and the shaft voltage to ensure the reliability of the bearing. However, some existing CMV reduction methods are based on asynchronized space vector pulse width modulation (SVPWM), which will cause unacceptable harmonic distortion at a low switching frequenc

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Rajanna, B. V., SVNL Lalitha, Ganta Joga Rao, and S. K. Shrivastava. "BPSK Modulation and Demodulation with Power Line Carrier Communication and GSM Communication for Smart Metering." International Journal of Power Electronics and Drive Systems (IJPEDS) 7, no. 3 (2016): 713. http://dx.doi.org/10.11591/ijpeds.v7.i3.pp713-722.

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GSM/GPRS and PLC communication are used for Automatic Meter Reading (AMR) applications. These AMR systems have made substantial progress over the recent years in terms of functionality, scalability, performance and openness such that they can perform remote metering applications for very demanding and complex systems. By using BPSK (Binary Phase Shift Keying) modulation with Power Line Carrier Communication, Smart Metering can be done in Rural Smart Micro-grids. The design and Simulation of BPSK Modulation and Demodulation are successfully done by using MATLAB/Simulink software. The advantages

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TSAI, CHIA-CHUN, SHENG-BIN DAI, and TRONG-YEN LEE. "THE RF CIRCUIT DESIGN OF POWER AND DATA CONTACTLESS TRANSMISSION FOR ISO/IEC 14443-2 TYPE B." Journal of Circuits, Systems and Computers 20, no. 08 (2011): 1637–58. http://dx.doi.org/10.1142/s0218126611008092.

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In this paper, we design and implement an integrated circuit system for contactless interface transmission to conform the transfer protocol of ISO/IEC 14443-2 Type B. The system consists of two major parts, interrogator and transponder, for magnetic power and data transmission. The power and data can synchronously be transferred from the interrogator to the transponder with 10% amplitude shift keying modulation of mixing both carrier 13.56 MHz and data rate 106 Kbps. Another data can be backward to the interrogator from the transponder with the mixed binary phase shift keying modulation. Simul

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Jarutus, Neerakorn, and Yuttana Kumsuwan. "A Carrier-Based Phase-Shift Space Vector Modulation Strategy for a Nine-Switch Inverter." IEEE Transactions on Power Electronics 32, no. 5 (2017): 3425–41. http://dx.doi.org/10.1109/tpel.2016.2587811.

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Qiu, Yang, and Chun-Kit Chan. "Characterization of an optical frequency-shift-keying transmitter based on carrier-suppressed phase modulation." Optical Fiber Technology 19, no. 3 (2013): 227–30. http://dx.doi.org/10.1016/j.yofte.2013.01.008.

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Schubert, M., A. Kasic, T. E. Tiwald, J. A. Woollam, V. Härle, and F. Scholz. "Phonons and Free Carriers in a Strained Hexagonal GaN-AlN Superlattice Measured by Infrared Ellipsometry and Raman Spectroscopy." MRS Internet Journal of Nitride Semiconductor Research 5, S1 (2000): 710–16. http://dx.doi.org/10.1557/s109257830000497x.

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Phonon and free-carrier effects in a strained hexagonal (α) {GaN}l-{AlN}msuperlattice (SL) heterostructure (l = 8 nm, m = 3 nm) are studied by infrared spectroscopic ellipsometry (IRSE) and micro (µ)-Raman scattering. Growth of the heterostructures was performed by metal-organic vapor phase epitaxy (MOVPE) on (0001) sapphire. An unstrained 1 µm-thick α-GaN layer was deposited prior to the SL. SL phonon modes are identified combining results from both IRSE and µ-Raman techniques. The shift of the GaN-sublayer phonon modes is used to estimate an average compressive SL stress of σxx ∼ - 4.3 GPa.

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C.R.Balamurugan, S.P.Natarajan, R.Bensra, and T.S.Anandhi. "PERFORMANCE EVALUATION ON UNIPOLAR PWM STRATEGIES FOR THREE PHASE DIODE CLAMPED MULTILEVEL INVERTER." International Journal of Soft Computing, Mathematics and Control (IJSCMC) 4, no. 2 (2022): 21. https://doi.org/10.5281/zenodo.6832228.

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This paper proposes different types of modulation methods for the Diode Clamped Multi Level Inverter (DCMLI). In this paper, a DCMLI is controlled with Sinusoidal PWM technique (SPWM), Third Harmonic Injection PWM technique, Sixty degree PWM technique and Stepped wave technique with Sub harmonic (SHPWM), Carrier Overlapping (CO), Phase shift (PS) , Variable frequency (VF) and the variation of Total Harmonic Distortion (THD) in their outputs are observed and also chosen inverter is controlled by SPWM technique, THI PWM technique, Sixty degree PWM and Stepped wave technique by varying the modula

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Zhang, Yaxin, Yuncheng Zhao, Shixiong Liang, et al. "Large phase modulation of THz wave via an enhanced resonant active HEMT metasurface." Nanophotonics 8, no. 1 (2018): 153–70. http://dx.doi.org/10.1515/nanoph-2018-0116.

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AbstractTerahertz (THz) science and technology promise unique applications in high-speed communications, high-accuracy imaging, and so on. To keep up with the demand for THz systems, THz dynamic devices should feature large phase shift modulation and high speed. To date, however, only a few devices can efficiently manipulate the phase of THz waves. In this paper, we demonstrate that efficient phase modulation of THz waves can be addressed by an active and enhanced resonant metamaterial embedded with a nanostructured 2D electron gas (2DEG) layer of a GaN high electron mobility transistor (HEMT)

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Outazkrit, Mbarek, Faicel EL Aamri, Essaid Jaoide, Abdelhadi Radouane, and Azeddine Mouhsen. "Circulating current suppression and natural voltage balancing using phase-shifted modulation for modular multilevel converter." International Journal of Electrical and Computer Engineering (IJECE) 14, no. 1 (2024): 44. http://dx.doi.org/10.11591/ijece.v14i1.pp44-56.

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The challenge of achieving a balanced capacitor voltage is one of the factors affecting the efficient operation of modular multilevel converters (MMC). This paper investigates this challenge through a proposed method that utilizes a high carrier frequency phase-shifted pulse width modulation (PS-PWM) scheme. This method aims to achieve natural balancing without the need for any additional control mechanisms. Moreover, the number of output voltage levels is affected by the phase shift between the carriers of the upper and lower arms. When there is no phase shift, N<sup>+1</sup> disc

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Ibrahim, Amalina Athira, Bo Li, Shenghong Ye, et al. "Phase Stabilization of a Terahertz Wave Using Mach–Zehnder Interference Detection." Electronics 12, no. 15 (2023): 3366. http://dx.doi.org/10.3390/electronics12153366.

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As a high-frequency carrier, the terahertz (THz) wave is essential for achieving high-data-rate wireless transmission due to its ultra-wide bandwidth. Phase stabilization becomes crucial to enable phase-shift-based multilevel modulation for high-speed data transmission. We developed a Mach–Zehnder interferometric phase stabilization technique for photomixing, which has proved a promising method for phase-stable continuous THz-wave generation. However, this method faced inefficiencies in generating phase-modulated THz waves due to the impact of the phase modulator on the phase stabilization sys

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Wu, Junyi, Zhiwen Liu, Ziyi Yang, and Changhao Du. "Fractionally spaced frequency domain equalization system based on FQPSK modulation." Applied and Computational Engineering 6, no. 1 (2023): 947–52. http://dx.doi.org/10.54254/2755-2721/6/20230965.

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Severe multi-path effects in the process of high-speed data transmission cause inter-symbol interference (ISI). The single carrier frequency domain equalization (SC-FDE) method combining the benefits of Feher-patented quadrature phase shift keying (FQPSK) modulation is raised to solve this problem, including the constant envelope, high spectrum efficiency, and insensitivity to nonlinear distortion. Furthermore, a fractionally spaced frequency domain equalization (FS-FDE) system based on FQPSK modulation is modeled based on the proposed algorithm. Simulation results confirm the superior perform

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Li, Meina, and Youn Kim. "Feasibility Analysis on the Use of Ultrasonic Communications for Body Sensor Networks." Sensors 18, no. 12 (2018): 4496. http://dx.doi.org/10.3390/s18124496.

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Ultrasonic waves have good propagation in the human body and have been widely applied in biomedical device design without any reported side effects. Therefore, ultrasonic waves can provide an alternative method as an information carrier for body sensor networks (BSNs). This paper presents a novel wireless communication method that uses ultrasonic sound waves as a medium for healthcare systems. We investigated the feasibility of our proposal by testing it in a real digital communication experimental setup. To find an acceptable modulation method, the functionality of the proposed ultrasound-bas

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Kumar, Premshankar, Dr Deepak Agrawal, Dr Shivkumar Sonkar, and Renuka P. Mishra. "An asymmetrical Cascaded 19-Level Inverter with Reduced Switches Count Using Phase Shift Frequency Modulation." International Journal of Engineering Research and Applications 14, no. 7 (2024): 149–55. http://dx.doi.org/10.9790/9622-1407149155.

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An expansion of inverters to more than two layers to reduce distortion from the simple sinusoidal waveform is where the concept of a multilayer inverter arose. The incorporation of additional switches, which increases system size and expense and lowers system dependability owing to the increased component count, is a disadvantage of using multiple level inverters. When compared to a symmetrical H-bridged nineteen-level inverter, a nineteen-level inverter (19-LI) with fewer switches is provided in this work to rectify the problem of system becoming bulkier, costly and less reliable with less di

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Effendi, Effendi, Ira Devi Sara, and Rakhmad Syafutra Lubis. "Disain SPWM Multilevel Inverter Satu Fasa Lima Belas Level." Jurnal Rekayasa Elektrika 12, no. 2 (2016): 60. http://dx.doi.org/10.17529/jre.v12i2.3966.

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Fifteen level single phase multilevel inverter is constructed using power circuit consist of 7 MOSFETs, seven independents DC sources, seven diodes, and an H-Bridge circuit. Switching method used in this MLI is sinusoidal pulse width modulation (SPWM) multicarrier where the reference wave in the form of a sinusoidal wave. Multicarrier SPWM circuit is designed using electronic components such as Op-Amp that used as a comparator and some logic gates such as AND, OR and NOT gate to trigger S1, S2, S3, S4, S5, S6, S7, and H-Bridge circuit. Carrier waves used in this MLI modified from the triangle

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Li, Kai, Liqiang Yuan, Zhengming Zhao, Sizhao Lu, and Yiming Zhang. "Fault-Tolerant Control of MMC With Hot Reserved Submodules Based on Carrier Phase Shift Modulation." IEEE Transactions on Power Electronics 32, no. 9 (2017): 6778–91. http://dx.doi.org/10.1109/tpel.2016.2628762.

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