Journal articles on the topic 'Demodulation (Electronics) Modulation (Electronics) Electrical engineering'

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1

Ruppert, Michael G., David M. Harcombe, Michael R. P. Ragazzon, S. O. Reza Moheimani, and Andrew J. Fleming. "A review of demodulation techniques for amplitude-modulation atomic force microscopy." Beilstein Journal of Nanotechnology 8 (July 10, 2017): 1407–26. http://dx.doi.org/10.3762/bjnano.8.142.

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In this review paper, traditional and novel demodulation methods applicable to amplitude-modulation atomic force microscopy are implemented on a widely used digital processing system. As a crucial bandwidth-limiting component in the z-axis feedback loop of an atomic force microscope, the purpose of the demodulator is to obtain estimates of amplitude and phase of the cantilever deflection signal in the presence of sensor noise or additional distinct frequency components. Specifically for modern multifrequency techniques, where higher harmonic and/or higher eigenmode contributions are present in
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2

Okuhata, Hiroyuki, Hiroshi Uno, Keiji Kumatani, Isao Shirakawa, and Toru Chiba. "A Low Power Receiver Architecture for 4 Mbps Infrared Wireless Communication." Journal of Circuits, Systems and Computers 07, no. 05 (1997): 483–94. http://dx.doi.org/10.1142/s021812669700036x.

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A high performance and low power architecture is devised for a 4 Mbps infrared wireless communication system dedicated to mobile computing. In this architecture, 4PPM (4-Pulse Position Modulation) infrared signals detected by an infrared receiver are digitized into TTL interface level pulses, and the digitized pulses are demodulated by a 1-bit digital demodulator. To extend the range of the link length, a 4PPM demodulator is synthesized to implement a demodulation algorithm which is constructed so as to accommodate the output tolerance of the infrared receiver. A part of the experimental resul
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3

Sun, Ping, Chun-xian Tao, Li Zhang, Xiao-teng Wang, and Qing Han. "Spatial modulation for electronic speckle patterns and its demodulation." Optoelectronics Letters 1, no. 2 (2005): 141–43. http://dx.doi.org/10.1007/bf03033689.

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4

Torrance, J. M., and L. Hanzo. "Demodulation level selection in adaptive modulation." Electronics Letters 32, no. 19 (1996): 1751. http://dx.doi.org/10.1049/el:19961225.

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5

Zhang, Rui, Jiandong Li, and Jie Wu. "A universal algorithm of modulation and demodulation." Journal of Electronics (China) 19, no. 3 (2002): 289–95. http://dx.doi.org/10.1007/s11767-002-0052-9.

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6

IIJIMA, YASUYUKI, SHIGEYUKI INOUE, TOMOKO KASHIMA, ATSUSHI FUKASAWA, and YUMI TAKIZAWA. "COHERENT SS DEMODULATION WITH ESTIMATION AND COMPENSATION OF PHASE ROTATION USING A PILOT CHANNEL." Journal of Circuits, Systems and Computers 13, no. 02 (2004): 361–73. http://dx.doi.org/10.1142/s0218126604001350.

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This paper describes and clarifies a configuration and its performance of estimation and compensation of phase rotation in radio propagation using a pilot channel for the SS (spread spectrum) modulation and demodulation. Coherent radio transmission scheme is composed as follows: (i) Continuous pilot signal is transmitted through a pilot channel, (ii) the pilot channel is composed of O-QPSK and QPSK for reverse and forward links, respectively, (iii) pilot signal is added in each I channel of O-QPSK and QPSK, and (iv) coherent demodulation is achieved by estimation and compensation of phase rota
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7

Mayer, Kayol Soares, Candice Müller, Fernando Cesar Comparsi de Castro, and Maria Cristina Felippetto de Castro. "A New CPFSK Demodulation Approach for Software Defined Radio." Journal of Circuits, Systems and Computers 28, no. 14 (2019): 1950243. http://dx.doi.org/10.1142/s0218126619502438.

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This paper proposes a new coherent Frequency-Shift Keying (FSK) demodulation technique for software defined radio platform, based on a new Digital Phase Locked Loop (DPLL) architecture. The proposed DPLL addresses the frequency dependence on classic DPLL architectures found in the literature. In classical approaches, the loop filter constants are dependent on the frequency level of the FSK transmitted symbols. The proposed approach applies a simpler feedback loop, with a single integrator and a phase detector architecture based on the small-angle approximation [Formula: see text], which result
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8

Nakanishi, K., K. Iwashita, and M. Nakao. "Optical 4-ary FSK modulation and demodulation experiment." Electronics Letters 24, no. 21 (1988): 1310. http://dx.doi.org/10.1049/el:19880890.

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9

Ryu, S. M., and C. K. Un. "A simple method for MSK modulation and demodulation." Proceedings of the IEEE 73, no. 11 (1985): 1690–91. http://dx.doi.org/10.1109/proc.1985.13354.

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10

Yuan, Yabo, Bo Wang, and Bin Wu. "Unified modulation and demodulation design for satellite communication systems." Electronics Letters 52, no. 4 (2016): 327–29. http://dx.doi.org/10.1049/el.2015.3979.

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11

Kim, J. H., and H. K. Song. "Efficient demodulation scheme for M-ary dual carrier modulation." Electronics Letters 46, no. 5 (2010): 374. http://dx.doi.org/10.1049/el.2010.3529.

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12

Koh, Kwang-Jin, Seyed Yahya Mortazavi, and Sadia Afroz. "Time Interleaved RF Carrier Modulations and Demodulations." IEEE Transactions on Circuits and Systems I: Regular Papers 61, no. 2 (2014): 573–86. http://dx.doi.org/10.1109/tcsi.2013.2278387.

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13

Roy, Arijit, Harshal B. Nemade, Ratnajit Bhattacharjee, and Vinod Kushwah. "DQPSK modulation and demodulation using SAW device." IET Communications 11, no. 17 (2017): 2630–36. http://dx.doi.org/10.1049/iet-com.2017.0821.

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14

Abielmona, S., H. V. Nguyen, C. Caloz, K. Wu, and R. G. Bosisio. "Compact multilayer ultra-wideband six-port device for modulation/demodulation." Electronics Letters 43, no. 15 (2007): 813. http://dx.doi.org/10.1049/el:20070678.

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15

Yang, Chaozhong, Yulin Wang, Shifeng Li, and Wenhe Yan. "Experimental Study of a Signal Modulation Method to Improve eLORAN Data Channel Communications." Sensors 20, no. 22 (2020): 6504. http://dx.doi.org/10.3390/s20226504.

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There are mainly two types of data modulation methods used for enhanced LOng-RAnge Navigation (eLORAN) systems: pulse position modulation (PPM) and supernumerary interpulse modulation (SIM). The typical application for PPM is tri-state PPM (3S-PPM), also known as Eurofix. The typical application for SIM is ninth pulse modulation. Both of these methods are phase modulation methods. Phase modulation coding, a very mature technology, is used at present. To achieve a better demodulation success rate of eLORAN digital modulation signals at longer distances, a method of using the transmitting statio
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16

Li, Y., and X. G. Xia. "Constellation Mapping for Space–Time Matrix Modulation With Iterative Demodulation/Decoding." IEEE Transactions on Communications 53, no. 5 (2005): 764–68. http://dx.doi.org/10.1109/tcomm.2005.847163.

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17

Chraplyvy, A. R., R. W. Tkach, A. H. Gnauck, B. L. Kasper, and R. M. Derosier. "8 Gbit/s FSK modulation of DFB lasers with optical demodulation." Electronics Letters 25, no. 5 (1989): 319. http://dx.doi.org/10.1049/el:19890222.

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18

Sun, Jinhua, Jiandong Li, and Lijun Jin. "Serially concatenated continuous phase modulation with reduced iterative demodulation and detection." Journal of Electronics (China) 24, no. 1 (2007): 16–22. http://dx.doi.org/10.1007/s11767-005-0072-3.

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19

Shen, Wei, and Biyang Wen. "A New Demodulation and Modulation Method Designed for FMCW Radar." Journal of Electrical and Computer Engineering 2010 (2010): 1–6. http://dx.doi.org/10.1155/2010/897429.

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An efficient demodulation method designed for FMCW (Frequency-Modulated Continuous Wave) radar is presented. It is a kind of modified DFT (IDFT) algorithm; the spectrum segment of interest can be easily extracted from the original signal without calculating the whole DFT/FFT. It provides fast demodulation and extraction of desired frequency bands in our HFSWR (High-Frequency Surface Wave Radar) system. The proposed approach enhances the performances of radar system and reduces the computing complexity. The new structure could also be inversely used for signal modulation. And also arbitrary sam
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20

Dezhi Zheng, Shaobo Zhang, Shuai Wang, Chun Hu, and Xiaomeng Zhao. "A Capacitive Rotary Encoder Based on Quadrature Modulation and Demodulation." IEEE Transactions on Instrumentation and Measurement 64, no. 1 (2015): 143–53. http://dx.doi.org/10.1109/tim.2014.2328456.

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21

DJEMOUAI, ABDELOHAHAB, and MOHAMAD SAWAN. "CIRCUIT TECHNIQUES FOR EFFECTIVE WIRELESS TRANSFER OF POWER AND DATA TO ELECTRONIC IMPLANTS." Journal of Circuits, Systems and Computers 16, no. 05 (2007): 801–18. http://dx.doi.org/10.1142/s0218126607003903.

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Novel circuit techniques and design approaches are proposed in this paper to build a controller dedicated to wireless power and data transmission systems used in the area of implantable devices such as sensors and neurostimulators. The aim of this controller is to regulate automatically the level of the power to be transferred and to modulate the carrier signals during data transmission. It includes several new integrated building blocks such as integrated pulse-width modulator (PWM), RF envelope detector, frequency-locked loop (FLL), and amplitude-shift keying (ASK) modulator and demodulator.
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22

Samui, S., I. Chakrabarti, and S. K. Ghosh. "Speech enhancement based on modulation domain processing using coherent harmonic demodulation technique." Electronics Letters 53, no. 24 (2017): 1611–13. http://dx.doi.org/10.1049/el.2017.2857.

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23

Zhiwen Zhu and H. Leung. "Combined demodulation with adaptive blind-channel equalization for chaotic-modulation communication systems." IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications 49, no. 12 (2002): 1811–20. http://dx.doi.org/10.1109/tcsi.2002.805711.

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24

Sekine, K., N. Kikuchi, S. Sasaki, S. Hayase, C. Hasegawa, and T. Sugawara. "40 Gbit∕s, 16-ary (4 bit∕symbol) optical modulation∕demodulation scheme." Electronics Letters 41, no. 7 (2005): 430. http://dx.doi.org/10.1049/el:20050383.

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25

Chen, Zhimin, Lenan Wu, and Peng Chen. "Efficient modulation and demodulation methods for multi-carrier communication." IET Communications 10, no. 5 (2016): 567–76. http://dx.doi.org/10.1049/iet-com.2015.0877.

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26

Pang, Yaokun, Jing Li, Tao Zhou, et al. "Flexible transparent tribotronic transistor for active modulation of conventional electronics." Nano Energy 31 (January 2017): 533–40. http://dx.doi.org/10.1016/j.nanoen.2016.11.042.

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27

Schmalz, Klaus, Eckard Grass, Frank Herzel, and Maxim Piz. "An Integrated 5 GHz Wideband Quadrature Modem for OFDM Gbit/s Transmission in SiGe:C BiCMOS." International Journal of Microwave Science and Technology 2007 (October 1, 2007): 1–8. http://dx.doi.org/10.1155/2007/47927.

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This paper presents a 5 GHz wideband I/Q modulator/demodulator for 650 MHz OFDM signal bandwidth, which is integrated with a 5 GHz phase locked loop for I/Q generation. The quadrature signals are derived from a 10 GHz CMOS VCO followed by a bipolar frequency divider. The phase noise at 1 MHz offset is −112 dBc/Hz for the modulator as well as for the demodulator. The chips were produced in a 0.25 μm SiGe BiCMOS technology. The signal-to-noise ratio (SNR) of transmitted/received OFDM signal and the corresponding I/Q mismatch versus baseband frequency are given. The modulator achieves an SNR of 2
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28

Avramov, I. D., P. J. Edmonson, and P. M. Smith. "Surface transverse wave based FM modulator/demodulator." Electronics Letters 26, no. 6 (1990): 364. http://dx.doi.org/10.1049/el:19900237.

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29

Filippov, Timur V., Anubhav Sahu, Dmitri E. Kirichenko, et al. "Parallel Counters for Low-Pass Phase Modulation–Demodulation ADCs." IEEE Transactions on Applied Superconductivity 28, no. 4 (2018): 1–5. http://dx.doi.org/10.1109/tasc.2018.2799989.

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30

El Khattabi, Mohammed, Mohammed Khaldoun, Jelloul Elmesbahi, and Ahmed Errami. "In-Band Full-Duplex FSK transceiver for IoT." Frequenz 75, no. 9-10 (2021): 419–29. http://dx.doi.org/10.1515/freq-2020-0208.

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Abstract A wireless frequency shift keying (FSK) transceiver that can simultaneously transmit and receive over the same radio channel using a novel complex baseband technique is introduced. The proposed design combines a traditional FSK modulator with a new frame-based demodulation technique able to recover data without using traditional cancellation techniques. Self Interference (SI) level has no impact on demodulation and can be ignored. The mathematical equations are detailed and validated by simulation. The implementation through software defined radio (SDR) using Ettus B210 USRP and GNU R
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31

Golovkov, A. A., V. A. Golovkov, and I. A. Malyutina. "MATHEMATICAL MODELING OF MULTIFUNCTIONAL DEVICES FOR HIGH-FREQUENCY SIGNAL AMPLITUDE MODULATION AND DEMODULATION." Telecommunications and Radio Engineering 72, no. 1 (2013): 57–72. http://dx.doi.org/10.1615/telecomradeng.v72.i1.50.

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32

Guan, Wu, Ming-ke Dong, and Hai-ge Xiang. "A Joint Demodulation and Decoding Algorithm for High Order LDPC Coded Modulations." JOURNAL OF ELECTRONICS INFORMATION & TECHNOLOGY 32, no. 2 (2010): 340–44. http://dx.doi.org/10.3724/sp.j.1146.2008.01287.

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33

Ortega, Lorenzo, Jordi Vilà‐Valls, Charly Poulliat, and Pau Closas. "GNSS data demodulation over fading environments: Antipodal and M ‐ary CSK modulations." IET Radar, Sonar & Navigation 15, no. 2 (2021): 113–27. http://dx.doi.org/10.1049/rsn2.12017.

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34

Thorpe, J., and P. McLane. "A Hybrid Phase/Data Viterbi Demodulator for Encoded CPFSK Modulation." IEEE Transactions on Communications 33, no. 6 (1985): 535–42. http://dx.doi.org/10.1109/tcom.1985.1096344.

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35

Hong-Yeh Chang, Shou-Hsien Weng, and Chau-Ching Chiong. "A 30–50 GHz Wide Modulation Bandwidth Bidirectional BPSK Demodulator/ Modulator With Low LO Power." IEEE Microwave and Wireless Components Letters 19, no. 5 (2009): 332–34. http://dx.doi.org/10.1109/lmwc.2009.2017615.

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36

Schlegel, Christian, Marat Burnashev, and Dmitri Truhachev. "Generalized Superposition Modulation and Iterative Demodulation: A Capacity Investigation." Journal of Electrical and Computer Engineering 2010 (2010): 1–9. http://dx.doi.org/10.1155/2010/153540.

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Modulation with correlated signal waveforms is considered. Such correlation arises naturally in a number of modern communications systems and channels, for example, in code-division multiple-access (CDMA) and multiple-antenna systems. Data entering the channel in parallel streams either naturally or via inverse multiplexing is transmitted redundantly by adding additional signal waveforms populating the same original time-frequency space, thus not requiring additional bandwidth or power. The transmitted data is spread over a frame ofNsignaling intervals by random permutations. The receiver comb
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37

Teronpi, Khushboo, Kandarpa Kumar Sarma, Aradhana Misra, and Manasjyoti Bhuyan. "DTW based Modulation Detection- Verification using Software Defined Radio." WSEAS TRANSACTIONS ON COMMUNICATIONS 20 (August 10, 2021): 133–38. http://dx.doi.org/10.37394/23204.2021.20.18.

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Modulation detection is one of the major tasks of an intelligent receiver in a software defined radio (SDR). It is an intermediate step between signal detection and demodulation. In this paper we present the modulation detection based on Dynamic Time Warping (DTW) algorithm. Here the types of modulation that we use are QPSK, 8-PSK, 16-QAM and 64-QAM. The whole test and verification has been done with the help of SDR platform. After the test and trials of all the modulation schemes, it is observed that DTW provides a good efficiency with the accuracy of 93.75%.
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38

HU, FEI, PAUL TILGHMAN, STEVEN MOKEY, JAMES BYRON, and ANDREW SACKETT. "SECURE, LOW-COST PROTOTYPE DESIGN OF UNDERWATER ACOUSTIC SENSOR NETWORKS." Journal of Circuits, Systems and Computers 17, no. 06 (2008): 1203–8. http://dx.doi.org/10.1142/s0218126608004629.

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Underwater Wireless Sensor Networks are essentially different from terrestrial RF-based sensor networks due to its highly variable and long acoustic delay. This paper describes our hardware/software co-design of low-cost underwater sensor nodes for deployment in a shallow underwater environment. Each sensor is comprised of a DSP board responsible for modulation/demodulation and sensor readings, as well as an analog board responsible for signal strength amplification and signal conditioning.
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39

Chen, Chien-Sheng, Chyuan-Der Lu, Ho-Nien Shou, and Le-Wei Lin. "Baseband Transceiver Design of a High Definition Radio FM System Using Joint Theoretical Analysis and FPGA Implementation." International Journal of Antennas and Propagation 2014 (2014): 1–9. http://dx.doi.org/10.1155/2014/580479.

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Advances in wireless communications have enabled various technologies for wireless digital communication. In the field of digital radio broadcasting, several specifications have been proposed, such as Eureka-147 and digital radio mondiale (DRM). These systems require a new spectrum assignment, which incurs heavy cost due to the depletion of the available spectrum. Therefore, the in-band on-channel (IBOC) system has been developed to work in the same band with the conventional analog radio and to provide digital broadcasting services. This paper discusses the function and algorithm of the high
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40

Yamazaki, Masami, Yusuke Tomoda, and Fumio Takahata. "Design of a PSK modulation/demodulation method free from interruptions." Electronics and Communications in Japan (Part I: Communications) 75, no. 9 (1992): 101–15. http://dx.doi.org/10.1002/ecja.4410750909.

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41

Chou, Hsi-Chiang. "Message transmission using RF chaotic modulation-demodulation system." Microwave and Optical Technology Letters 45, no. 4 (2005): 321–24. http://dx.doi.org/10.1002/mop.20811.

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42

Ma, G., P. S. Hall, P. Gardner, and M. Hajian. "Direct-conversion active antennas for modulation and demodulation." Microwave and Optical Technology Letters 28, no. 2 (2000): 89–93. http://dx.doi.org/10.1002/1098-2760(20010120)28:2<89::aid-mop3>3.0.co;2-w.

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43

JianBo Liu, HunFei Ye, and ShuJing Zhang. "Correction to "Design of Demodulator for the Chaotic Modulation Communication System"." IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications 46, no. 3 (1999): 417. http://dx.doi.org/10.1109/tcsi.1999.751318.

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44

Carpenter, Sona, Zhongxia Simon He, and Herbert Zirath. "Multi-functional D-bandI/Qmodulator/demodulator MMICs in SiGe BiCMOS technology." International Journal of Microwave and Wireless Technologies 10, no. 5-6 (2018): 596–604. http://dx.doi.org/10.1017/s1759078718000338.

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AbstractThis paper presents the design and characterization of a D-band (110–170 GHz) monolithic microwave integrated direct carrier quadrature modulator and demodulator circuits with on-chip quadrature local oscillator (LO) phase shifter and radio frequency (RF) balun fabricated in a 130 nm SiGe BiCMOS process withft/fmaxof 250 GHz/400 GHz. These circuits are suitable for low-power ultra-high-speed wireless communication and can be used in both homodyne and heterodyne architectures. In single-sideband operation, the modulator demonstrates a maximum conversion gain of 9.8 dB with 3-dB RF bandw
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45

Mizuno, Toyoshi, Kenshiro Yokoyama, Daisaku Nakajima, Soichiro Hayakawa, and Nuio Tsuchida. "Non-Interference Multiplex Transmission System of Power with Informations by Using Switching Modulation and Demodulation." IEEJ Transactions on Electronics, Information and Systems 126, no. 12 (2006): 1467–73. http://dx.doi.org/10.1541/ieejeiss.126.1467.

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46

Yu, Dongsheng, Yingchun Hua, Shenglong Yu, Pinjia Zhang, Herbert H. C. Iu, and Tyrone Fernando. "A New Modulation–Demodulation Approach to DC Power-line Data Transmission for SRG-Integrated Microgrid." IEEE Transactions on Power Electronics 35, no. 11 (2020): 12370–82. http://dx.doi.org/10.1109/tpel.2020.2984911.

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47

FUJITA, T., D. UCHIDA, Y. FUJINO, O. KAGAMI, and K. WATANABE. "A Burst Modulation/Demodulation Method for Narrowband Ubiquitous Communication Systems." IEICE Transactions on Communications E91-B, no. 11 (2008): 3416–25. http://dx.doi.org/10.1093/ietcom/e91-b.11.3416.

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48

de Nazaré, Fábio V. B., Marcelo M. Werneck, Rodrigo P. de Oliveira, D. M. Santos, R. C. Allil, and B. A. Ribeiro. "Development of an Optical Sensor Head for Current and Temperature Measurements in Power Systems." Journal of Sensors 2013 (2013): 1–12. http://dx.doi.org/10.1155/2013/393406.

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The development of a current and temperature monitoring optical device intended to be used in high-voltage environments, particularly transmission lines, is presented. The system is intended to offer not only measurement reliability, but to be also practical and light weighted. Fiber Bragg gratings (FBGs) are employed in the measurement of both physical parameters: the current will be acquired using a hybrid sensor head setup—an FBG fixed on a magnetostrictive rod—while a single-point temperature information is provided by a dedicated grating. An inexpensive and outdoor-suitable demodulation m
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49

Burmistrov, E. V., V. Yu Slobodchikov, V. V. Khanin, Yu V. Maslennikov, and O. V. Snigirev. "Modulation SQUID electronics working with high-T c SQUIDs in open space." Journal of Communications Technology and Electronics 53, no. 10 (2008): 1259–65. http://dx.doi.org/10.1134/s1064226908100148.

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50

Clark, Thomas R., Sean R. O'Connor, and Michael L. Dennis. "A Phase-Modulation I/Q-Demodulation Microwave-to-Digital Photonic Link." IEEE Transactions on Microwave Theory and Techniques 58, no. 11 (2010): 3039–58. http://dx.doi.org/10.1109/tmtt.2010.2076971.

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