Relevant bibliographies by topics / Quadrature demodulation

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Quadrature demodulation'

Author: Grafiati
Published: 4 June 2021
Last updated: 16 February 2022

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Journal articles on the topic "Quadrature demodulation"

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Peng, Kang-Chun, and Chan-Hung Lee. "A Novel Quadrature-Tracking Demodulator for LTE-A Applications." Wireless Communications and Mobile Computing 2018 (2018): 1–8. http://dx.doi.org/10.1155/2018/8712414.

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This work develops an advanced quadrature-tracking demodulation technique for coherently demodulating the orthogonal frequency-division multiplexing (OFDM) signal of LTE-A systems. To overcome the fact that traditional coherent demodulators are extremely sensitive to the quadrature imbalance of a system, especially an OFDM system, the proposed architecture uses a novel quadrature phase-locked loop (QPLL) to track simultaneously the in phase (I-phase) and the quadrature phase (Q-phase) of the received signal. This advanced quadrature-tracking demodulator is realized using TSMC 0.18 μm CMOS technology and hybrid circuits. Experimental results indicate that the developed quadrature-tracking demodulator, which operates at 2.1~2.5 GHz, can effectively demodulate an 18 Mbps LTE-A signal, even with a 15 degree quadrature imbalance.
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Mohamed Moubark, Asraf, and Sawal Hamid Md Ali. "A Novel Sample Based Quadrature Phase Shift Keying Demodulator." Scientific World Journal 2014 (2014): 1–7. http://dx.doi.org/10.1155/2014/107831.

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This paper presents a new practical QPSK receiver that uses digitized samples of incoming QPSK analog signal to determine the phase of the QPSK symbol. The proposed technique is more robust to phase noise and consumes up to 89.6% less power for signal detection in demodulation operation. On the contrary, the conventional QPSK demodulation process where it uses coherent detection technique requires the exact incoming signal frequency; thus, any variation in the frequency of the local oscillator or incoming signal will cause phase noise. A software simulation of the proposed design was successfully carried out using MATLAB Simulink software platform. In the conventional system, at least 10 dB signal to noise ratio (SNR) is required to achieve the bit error rate (BER) of 10−6, whereas, in the proposed technique, the same BER value can be achieved with only 5 dB SNR. Since some of the power consuming elements such as voltage control oscillator (VCO), mixer, and low pass filter (LPF) are no longer needed, the proposed QPSK demodulator will consume almost 68.8% to 99.6% less operational power compared to conventional QPSK demodulator.
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Ho, K. C., Y. T. Chan, and R. Inkol. "A digital quadrature demodulation system." IEEE Transactions on Aerospace and Electronic Systems 32, no. 4 (1996): 1218–27. http://dx.doi.org/10.1109/7.543843.

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Kulikov, G. V., and A. A. Lelyukh. "Influence of amplitude and phase imbalance of quadratures on the noise immunity of coherent reception of signals with quadrature amplitude modulation." Russian Technological Journal 9, no. 1 (March 3, 2021): 29–37. http://dx.doi.org/10.32362/2500-316x-2021-9-1-29-37.

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Quadrature amplitude modulation (QAM) is used for high-speed information transmission in many radio systems and, in particular, in DVB-S and DVB-S2/S2X digital satellite television systems. A receiver included as a part of the transmitting equipment of such systems has a block for the formation of quadrature oscillations used as a reference for signal demodulation. Due to hardware instabilities, amplitude and phase errors may occur, which leads to quadratures imbalance. These inaccuracies cause additional errors in the received signal demodulation. This can significantly degrade the noise immunity of the reception. The paper investigates the influence of amplitude and phase errors in the formation of quadrature oscillations (imbalance of quadratures) on the noise immunity of coherent reception of QAM signals. Using the methods of statistical radio engineering the parameters of the distributions of processes in the receiver are obtained, and the probability of a bit error is estimated. The dependences of the bit error probability on the amplitude unbalance factor, on the phase error of quadrature formation and on signal-to-noise ratio are obtained. It is shown that the amplitude imbalance of the quadratures leads to a significant decrease in the noise immunity of QAM signals reception at M ≥ 16. The acceptable amplitude deviation in this case can be considered to be equal to 5%. At M= 4, the amplitude imbalance in a wide range of values practically does not affect the noise immunity. The phase imbalance of quadratures markedly affects the noise immunity of coherent reception of QAM signals. The permissible phase error is no more than 0.05 rad (3 degrees). As the signals positionality increases, this influence also increases.
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Jeong, YeonKeun, Woojin Seo, and Kwang Ryul Baek. "Implementation of Ultrasonic Flow Meter System with Quadrature Demodulation." Journal of Institute of Control, Robotics and Systems 24, no. 8 (August 31, 2018): 777–83. http://dx.doi.org/10.5302/j.icros.2018.0080.

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Chernoyarov, Oleg, Alexey Glushkov, Vladimir Litvinenko, Yuliya Litvinenko, and Boris Matveev. "Digital Demodulator of the Quadrature Amplitude Modulation Signals." Measurement Science Review 18, no. 6 (October 1, 2018): 236–42. http://dx.doi.org/10.1515/msr-2018-0032.

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Abstract In this paper, the digital algorithm and the device for the demodulation of the quadrature amplitude modulation signals are considered. The fundamental advantages of our approach are simple hardware implementation, minimal number of arithmetic operations required over the signal period as well as the potential interference immunity in the presence of Gaussian noise. The expressions have been found for the error probability and their inaccuracy has been estimated. By means of the statistical simulation methods, the practical interference immunity of the introduced demodulator, together with the influence of phase locking errors have been tested. The introduced demodulator can be implemented either as a device independent from the programmable logic devices, or as an installation unit of the receiver equipment.
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Gao, Xiao Peng, Si Yuan Wang, and Han Wan. "Accelerate Demodulation of Quadrature Amplitude Modulation Using GPU." Applied Mechanics and Materials 325-326 (June 2013): 907–11. http://dx.doi.org/10.4028/www.scientific.net/amm.325-326.907.

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Quadrature amplitude modulation (QAM) is widely used in communication systems. The traditional QAM demodulation method was implemented in hardware. This paper proposes a demodulation algorithm using GPU. The GPU algorithm is easier to add new features than hardware implementation and reaches 57x speed up compared with the serial algorithm on CPU. It is shown that the QAM demodulation algorithm gained significant performance increase due to the natural parallism of the GPU, using Compute Unified Device Architecture (CUDA).
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Sud, Seema. "High Order Chirp Rate Shift Keying Modulation Using the Fractional Fourier Transform." European Journal of Engineering Research and Science 2, no. 4 (April 14, 2017): 1. http://dx.doi.org/10.24018/ejers.2017.2.4.314.

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In this paper, we discuss an improved demodulation scheme using the Fractional Fourier Transform (FrFT) for a modulation scheme employing chirp rate shift keying (CrSK). CrSK in conjunction with the FrFT enable very high order, e.g. more than 32-ary modulation schemes to be achievable with good bit error rate (BER) performance, even in the absence of coding, thereby overcoming limitations of traditional schemes including phase shift keying (PSK) or QAM (quadrature amplitude modulation). By using an FrFT-based demodulator, we expand our demodulation degrees of freedom from a single (e.g. frequency) axis to an entire time-frequency domain, called the Wigner Distribution (WD). We show how the proposed demodulation scheme using the FrFT improves over past approaches by more than 7 dB, enabling us to achieve close to 4-ary performance with a 32-ary modulation scheme. This enables future systems to operate at 5 bits/s/Hz bandwidth efficiency, enhancing bandwidth utilization for future generation, high data rate, applications, such as internet.
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Chen, Hua, and Yanqing Zhong. "Design of Readout Circuit with Quadrature Error and Auxiliary PLL for MEMS Vibratory Gyroscope." Sensors 20, no. 16 (August 14, 2020): 4564. http://dx.doi.org/10.3390/s20164564.

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Traditional MEMS gyroscope readout eliminates quadrature error and relies on the phase relationship between the drive displacement and the Coriolis position to accomplish a coherent demodulation. This scheme shows some risk, especially for a mode-matching gyro. If only a slight resonant frequency deviation between the drive and sense mode occurs, a dramatic change in the phase relationship follows, which leads to a wrong demodulation. To solve this, this paper proposes a new readout based on the quadrature error and an auxiliary phase-locked loop (PLL). By tuning the phase shifter in the sense-mode circuit, letting the quadrature error and the carrier of the mixer be in 90° phase alignment, the Coriolis was simultaneously in phase with the carrier. Hence, the demodulation was accomplished. The carrier comes from the PLL output of the drive-mode circuit due to its low jitter and independence of the work mode of the gyro. Moreover, an auxiliary PLL is used to filter the quadrature error to enhance the phase alignment accuracy. Through an elaborate design, a printed circuit board was used to verify the proposed idea. The experimental results show the readout circuit functioned well. The scale factor of the gyro was 6.8 mV/°/s, and the bias instability was 204°/h.
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Corbella, Ignasi, Manuel Martín Neira, Roger Vilaseca, Albert Catalan, Francesc Torres, and Martin Suess. "A Novel Digital IQ Demodulation for Interferometric Radiometers." Remote Sensing 13, no. 6 (March 18, 2021): 1156. http://dx.doi.org/10.3390/rs13061156.

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In the frame of an SMOS follow-on operational mission, a new instrument design is being developed based on the lessons learned from MIRAS, the SMOS payload. To reduce hardware complexity and mass, digital In-phase Quadrature (IQ) demodulation is considered. In this schema, Q components are obtained by delaying one clock of the digitized IF signals instead of using phase quadrature analog mixers. The purpose of this article is to formulate this concept for application to interferometric radiometry, establish the required data processing methods, and provide experimental results.
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Dissertations / Theses on the topic "Quadrature demodulation"

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Campbell, Heather A. (Heather Alyce). "Simulation of quadrature amplitude demodulation in a digital telemetry system." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/38783.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1996.
Includes bibliographical references (leaves 122-123).
by Heather A. Campbell.
M.Eng.
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Ramchander, Rajesh. "Quadrature-point stabilization of Mach-Zehnder interferometers." Thesis, Virginia Tech, 1990. http://hdl.handle.net/10919/41594.

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Optical fiber magnetometers are extremely sensitive devices which are capable of competing with magnetometers implemented using other technologies. Demodulation of the signals detected using these magnetometers can be performed using either homodyne or heterodyne techniques. Higher sensitivities have been achieved using homodyne rather than heterodyne techniques, but with homodyne demodulation there exists the inherent problem of quadrature-point stabilization. Presented here is a review of existing quadrature-point stabilization methods and experimental results concerning the application of one of them which uses a piezoelectric transducer in the reference arm of an all-fiber Mach-Zehnder interferometer.
Master of Science
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Ndovi, Lusungu. "Benefits to processor load for quadrature baseband versus radio frequency demodulation algorithms." Thesis, Link to the online version, 2008. http://hdl.handle.net/10019/1946.

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Schaaff, Kevin P. "Monterey Bay acoustic tomography : signal processing using multi-channel data-synchronized quadrature phase demodulation." Thesis, Monterey, California. Naval Postgraduate School, 1989. http://hdl.handle.net/10945/27143.

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Efthymiou, Spyros. "Modelling of pyroelectric detectors detection by digital signal processing algorithms." Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/modelling-of-pyroelectric-detectors-detection-by-digital-signal-processing-algorithms(61eca3ad-2bb7-4ef1-869c-8ec0c4965f3b).html.

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Pyroelectric Detector (PED) models are developed considering the classical heat balance equation to simulate the detector’s response under specified radiation conditions. Studies on the behaviour of a PED are presented under the conditions of step function and a pulsed load. Finite Element Methods (FEMs) have been used to obtain 3D models of the resulting temperature field in a Lithium Tantalate (LiTaO3) pyroelectric crystal, incorporated in a complete commercial detector, taking into account details of its geometry and thermal connectivity. The novelty is the achieved facility to predict the response to pulsed radiation, which is valuable for the engineering of pulsed-source sensor systems requiring detection at room temperature. In this thesis, we present a signal processing (SP) algorithm, which combines the principle of Quadrature Synchronous Demodulation (QSD) and Gated Integration (GI), to achieve an improved signal-to-noise ratio (SNR) in pulsed signal measurements. As a first step, the pulse is bracketed by a gating window and the samples outside the window are discarded. The gate duration is calculated to ensure that the periodic signal at the output has an 'apparent' duty factor close to 0.5. This signal is then fed continuously for QSD to extract the magnitude and phase of its fundamental component, referenced to a sinusoidal signal with period defined by the gate length. An improved SNR performance results not only from the increase of the average signal energy, but also from the noise suppression inherent to the QSD principle. We introduce this method as Gated Quadrature Synchronous Demodulation (GQSD), emphasizing the synergy between GΙ and QSD.
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Lee, Dennis, Marvin Simon, and Tsun-Yee Yan. "ENHANCED PERFORMANCE OF FQPSK-B RECEIVER BASED ON TRELLIS-CODED VITERBI DEMODULATION." International Foundation for Telemetering, 2000. http://hdl.handle.net/10150/607724.

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International Telemetering Conference Proceedings / October 23-26, 2000 / Town & Country Hotel and Conference Center, San Diego, California
Commercial FQPSK-B receivers traditionally use symbol-by-symbol detection and have a 2 dB Eb=No loss relative to ideal QPSK at a bit error rate (BER) of 10^(-5). An enhanced FQPSK-B receiver using a Viterbi algorithm (VA) to perform trellis decoding is simulated and shown to have a 1.2 dB Eb=No improvement over symbol-by-symbol detection for 10^(-5)5 BER at the cost of increased complexity. A simplified Viterbi receiver with a reduced trellis and significantly less complexity is introduced with only a slight BER degradation compared to the full Viterbi receiver. In addition, a theoretical bit error probability expression for the symbol-by-symbol FQPSK-B receiver is derived and compared with simulation results.
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Booysen, Samuel. "The design of a high speed topology for a QPSK demodulator with emphasis on the synchronization algorithms needed for demodulation." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/4107.

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Thesis (MScEng (Electrical and Electronic Engineering))--University of Stellenbosch, 2010.
ENGLISH ABSTRACT: This thesis describes the design and implementation of a software based QPSK demodulator with a demodulation speed of 100 Mbps. The objective of the thesis was to identify a topology for the QPSK demodulator that would allow for high data rates and the design of the synchronization algorithms for carrier and symbol recovery. The QPSK demodulator was implemented on an Altera Stratix II field programmable gate array (FPGA), which does complex I and Q sampling on a down converted 720 MHz QPSK signal. The I and Q down converted baseband signals are sent through matched filters which are implemented with discrete components to maximize the signal to noise ratio of the received rectangular baseband pulses. A 1 GSPS direct digital synthesizer (DDS) is used to generate the synchronous clock for the analog to digital converters which samples the matched filter outputs. The demodulator uses two samples per symbol to demodulate the QPSK signal. A dual locking system is implemented to have a wide pre-locking filter for symbol synchronization and a narrow band post-lock filter to minimize the loop noise. A symbol lock detection algorithm decides when the symbol recovery loop is locked and switches between the loop filters. A second 1 GSPS DDS output is mixed with a local oscillator to generate the 1.44 GHz LO signal for the quadrature down conversion. The carrier recovery loop uses a numerically controlled oscillator inside the FPGA for initial carrier acquisition which allows for very wide locking bandwidth. After lock is achieved, the external carrier recovery loop takes over and removes any frequency offset in the complex baseband signal by changing the frequency of the DDS. A QPSK modulator was also developed to provide a QPSK signal with known data. The modulator can generate any constellation diagram up to 256 points.
AFRIKAANSE OPSOMMING: Hierdie tesis bespreek die ontwerp en implementasie van ’n sagteware gebaseerde QPSK demodulator met ’n demodulasie spoed van 100 Mbps. Die doelstelling is om ’n topologie te identifiseer vir ’n QPSK demodulator wat ’n hoë datatempo sal toelaat en ook om sinkronisasie algoritmes te ontwikkel vir draer en simbool herkenning. Die QPSK demodulator is geïmplimenteer op ’n Stratix II FPGA van Altera wat kompleks basisband monstering doen op infase en kwadratuur basisband seine. Die basisband seine word gegenereer van ’n 720 MHz QPSK sein met ’n kwadratuur menger wiese uittrees deur puls passende filters gestuur word om die sein tot ruis verhouding te maksimeer. ’n Een gigamonster per sekonde direk digitale sintetiseerder (DDS) is gebruik om die klok vir die analoog na digitaal omsetters te genereer vir sinkrone monstering van die pulse passende filter uittrees. Die demodulator gebruik twee monsters per simbool om ’n QPSK sein te demoduleer. ’n Tweevoudige sluit algoritme word gebruik vir die simbool sinkronisasie waar ’n wyeband filter die inisiële sluit funksie verrig en dan word daar oorgeslaan na ’n nouband filter vir fase volging wat die ruis in die terugvoerlus verminder. Daar is ’n simbool sluit detektor wat identifiseer wanneer die simbool beheerlus gesluit is en selekteer dan die gepaste filter. ’n Tweede DDS en ’n sintetiseerder se uittrees word gemeng om ’n 1.44 GHz draer te genereer vir kohurente frekwensie translasie in die kwadratuur menger. Die draer sinkronisasie gebruik ’n numeries beheerbare ossilator vir die inisiële frekwensie en fase sluit wat baie vinnig geimplenteer kan word omdat dit alles in sagteware binne in die FPGA gebeur. Na die interne draer beheerlus gesluit is, neem die eksterne beheerlus oor om enige fase of frekwensie afsette in die kompleks basisband seine van die kwadratuur menger te verwyder deur die frekwensie van die draer DDS te beheer. ’n QPSK modulator is ook ontwikkel om verwysings data te genereer. Enige konstelasie vorm tot 256 punte kan geimplementeer word.
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Ghuman, Parminder, Salman Sheikh, Steve Koubek, Scott Hoy, and Andrew Gray. "High Rate Digital Demodulator ASIC." International Foundation for Telemetering, 1998. http://hdl.handle.net/10150/609676.

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International Telemetering Conference Proceedings / October 26-29, 1998 / Town & Country Resort Hotel and Convention Center, San Diego, California
The architecture of the High Rate (600 Mega-bits per second) Digital Demodulator (HRDD) ASIC capable of demodulating BPSK and QPSK modulated data is presented in this paper. The advantages of all-digital processing include increased flexibility and reliability with reduced reproduction costs. Conventional serial digital processing would require high processing rates necessitating a hardware implementation other than CMOS technology such as Gallium Arsenide (GaAs) which has high cost and power requirements. It is more desirable to use CMOS technology with its lower power requirements and higher gate density. However, digital demodulation of high data rates in CMOS requires parallel algorithms to process the sampled data at a rate lower than the data rate. The parallel processing algorithms described here were developed jointly by NASA’s Goddard Space Flight Center (GSFC) and the Jet Propulsion Laboratory (JPL). The resulting all-digital receiver has the capability to demodulate BPSK, QPSK, OQPSK, and DQPSK at data rates in excess of 300 Mega-bits per second (Mbps) per channel. This paper will provide an overview of the parallel architecture and features of the HRDR ASIC. In addition, this paper will provide an overview of the implementation of the hardware architectures used to create flexibility over conventional high rate analog or hybrid receivers. This flexibility includes a wide range of data rates, modulation schemes, and operating environments. In conclusion it will be shown how this high rate digital demodulator can be used with an off-the-shelf A/D and a flexible analog front end, both of which are numerically computer controlled, to produce a very flexible, low cost high rate digital receiver.
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Ong, Chin Siang. "Digital phased array architectures for radar and communications based on off-the-shelf wireless technologies." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2004. http://library.nps.navy.mil/uhtbin/hyperion/04Dec%5FOng.pdf.

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Thesis (M.S. in Electrical Engineering)--Naval Postgraduate School, December 2004.
Thesis advisor(s): David C. Jenn, Siew Yam Yeo. Includes bibliographical references (p. 63-64). Also available online.
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Rejnuš, Milan. "Měřicí zesilovač využívající vektorové synchronní detekce." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-221146.

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The master’s thesis describes known methods of signal measurement using principle of synchronous detection. Various methods are presented, their principles are examined and the problems when using them are analyzed. Further, procedures for reduction of adverse effects are described also. Second part of this thesis is focused on the instrument design. The instrument is intended for detection and processing of the output signals in a given optometric system. The proposed device is designed to operate on the principle of synchronous detection method using a vector signal evaluation. Advantages and disadvantages are discussed below.
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Books on the topic "Quadrature demodulation"

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Schaaff, Kevin P. Monterey Bay acoustic tomography : signal processing using multi-channel data-synchronized quadrature phase demodulation. Monterey, Calif: Naval Postgraduate School, 1989.

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Book chapters on the topic "Quadrature demodulation"

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Behar, Vera, and Christo Kabakchiev. "Digital Quadrature Demodulation of LFM Signals Obtained by Lowpass Filtering." In Numerical Methods and Applications, 267–73. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/3-540-36487-0_29.

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Song, Ningfang, Yujie Yang, Ying Chen, and Jingming Song. "Fiber-Optic Extrinsic Fabry–Perot Interferometer Pressure Sensor Demodulation System with Three Quadrature Signals." In Proceedings of the Second International Conference on Mechatronics and Automatic Control, 1099–106. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-13707-0_121.

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Senchenko, Alexander R., and Andrey N. Serov. "Application of Simulink for Research of a Frequency Measurement Method Based on Quadrature Demodulation Technique." In Springer Proceedings in Physics, 507–16. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-58868-7_55.

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Wojtiuk, J. J., and M. Rice. "Quadrature Phase Error and Amplitude Imbalance Effects on Digital Demodulator Performance." In Information Technology: Transmission, Processing and Storage, 195–206. London: Springer London, 1996. http://dx.doi.org/10.1007/978-1-4471-1013-2_15.

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Daldal, Nihat, and Kemal Polat. "Piecewise Demodulation Based on Combined Artificial Neural Network for Quadrate Frequency Shift Keying Communication Signals." In Artificial Intelligence and Applied Mathematics in Engineering Problems, 17–24. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-36178-5_2.

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Senchenko, Alexander R., and Andrey N. Serov. "Investigation of the Effect of ADC Imperfections on the Amplitude Spectrum Measurement Error for a Quadrature Demodulator Technique." In Springer Proceedings in Physics, 477–86. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-58868-7_52.

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KÖNING, RAINER, GEJZA WIMMER, and VIKTOR WITKOVSKÝ. "EllipseFit4HC: A MATLAB ALGORITHM FOR DEMODULATION AND UNCERTAINTY EVALUATION OF THE QUADRATURE INTERFEROMETER SIGNALS." In Series on Advances in Mathematics for Applied Sciences, 211–18. WORLD SCIENTIFIC, 2015. http://dx.doi.org/10.1142/9789814678629_0025.

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Conference papers on the topic "Quadrature demodulation"

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Sunny, Sona, Jaison Varghese John, and T. J. Apen. "Quadrature Detection Methods for FM Demodulation." In 2013 Third International Conference on Advances in Computing and Communications (ICACC). IEEE, 2013. http://dx.doi.org/10.1109/icacc.2013.92.

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Alexandru, Ilie Mihai, Liviu Viman, and Dan Pitica. "Network analyzer concept based on quadrature demodulation." In 2017 IEEE 23rd International Symposium for Design and Technology in Electronic Packaging (SIITME). IEEE, 2017. http://dx.doi.org/10.1109/siitme.2017.8259870.

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Lee, Da-Young, Changhan Yoon, Yangmo Yoo, Tai-Kyong Song, and Jin Ho Chang. "Adaptive quadrature demodulation for ultrasound tissue harmonic imaging." In 2010 IEEE Ultrasonics Symposium (IUS). IEEE, 2010. http://dx.doi.org/10.1109/ultsym.2010.5935740.

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Liu, Enke, Junfeng Wang, and Tao Wang. "Phase imbalance compensation in SAR/ISAR quadrature demodulation." In 2009 2nd Asian-Pacific Conference on Synthetic Aperture Radar (APSAR). IEEE, 2009. http://dx.doi.org/10.1109/apsar.2009.5374283.

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Fdil, Khaoula, Vincent Michaud-Belleau, Nicolas Bourbeau Hébert, and Jéròme Genest. "Dual electro-optic comb spectroscopy using quadrature demodulation." In Optics and Photonics for Sensing the Environment. Washington, D.C.: OSA, 2020. http://dx.doi.org/10.1364/es.2020.em2c.4.

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Wu, Chuanbin, Yi Lin, Sen Ye, Guhong Zhang, Huilian Ma, and Zhonghe Jin. "Synchronous Digital Quadrature Demodulation Technique for Resonant Optic Gyroscopes." In 2018 Asia Communications and Photonics Conference (ACP). IEEE, 2018. http://dx.doi.org/10.1109/acp.2018.8596301.

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Qian, Dong, Zhang Ping, Qi Haiming, and Yuan Xinzhe. "Bandpass Sampling and Quadrature Demodulation in Synthetic Aperture Radar." In 2006 CIE International Conference on Radar. IEEE, 2006. http://dx.doi.org/10.1109/icr.2006.343297.

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Wang Guoqing, Wei Xizhang, and Lu Huanzhang. "Double-IF quadrature demodulation of super-heterodyne radar receiver." In 2008 9th International Conference on Signal Processing (ICSP 2008). IEEE, 2008. http://dx.doi.org/10.1109/icosp.2008.4697658.

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Czarske, Juergen W., Fromund Hock, and Harald Mueller. "Quadrature demodulation: a new LDV burst-signal frequency estimator." In Laser Anemometry: Advances and Applications--Fifth International Conference, edited by J. M. Bessem, R. Booij, H. W. H. E. Godefroy, P. J. de Groot, K. K. Prasad, F. F. M. de Mul, and E. J. Nijhof. SPIE, 1993. http://dx.doi.org/10.1117/12.150568.

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Estrada, J. C., and M. Servin. "Single fringe pattern demodulation using local adaptable quadrature filters." In Optical Metrology, edited by Harald Bosse, Bernd Bodermann, and Richard M. Silver. SPIE, 2007. http://dx.doi.org/10.1117/12.726227.

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