quadrature phase-shift keying signal
V-Band Quadrature Phase Shift Keying Demodulator Using Wr-12 Six-Port
... a quadrature phase shift keying (QPSK) modulated signal along with a six-port demodulator model based on coupler measurement ...
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Efficient phase estimation for the classification of digitally phase modulated signals using the cross-WVD: a performance evaluation and comparison with the S-transform
... optimum phase estimation within the class of phase shift keying ...the phase information for digitally phase modulated signals, unlike the quadratic time-frequency ...the ...
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Bit Error Rate Performance of OFDM/OQPSK and CPM with Channel Coding Over AWGN Channel
... Quadrature Phase Shift Keying (QPSK) has to do with splitting a quadrature stream as well as an in-phase stream in a situation where both the streams have half the bit rate of ...
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Trellis Coded Modulation Schemes Using A New Expanded 16-Dimensional Constant Envelope Quadrature-Quadrature Phase Shift Keying Constellation
... In our TCM system, the received signals, corrupted by noise, are decoded by using a soft- decision maximum-likelihood sequence decoder [12]. We use the Viterbi decoding algorithm [13], [14] to search the trellis and find ...
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Comparative Study of Bit Error Rate with Channel Estimation in OFDM System for M ary Different Modulation Techniques
... M-ary phase shift keying (M- PSK) and M-ary quadrature amplitude modulation (M-QAM) digital modulation techniques for mapping the signal in OFDM system for bit error rate evaluation ...
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BER Performance Simulation of OFDM System with Channel Estimation using M-PSK and M-QAM
... M-ary phase shift keying (M-PSK) and M-ary quadrature amplitude modulation (M-QAM) digital modulation techniques for mapping the signal in OFDM system for bit error rate evaluation with ...
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Performance Comparison of Digital Modulation Techniques used in Wireless Communication System
... amplitude shift keying (ASK), quadrature phase shift keying (QPSK), binary phase shift keying (BPSK), frequency shift Keying (FSK) ,On-off ...
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DESIGN OF A VERIFICATION TECHNIQUE FOR QUADRATURE PHASE SHIFT KEYING USING MODEL SIM SIMULATOR FOR BROADCAST COMMUNICATION RELEVANCE’S
... In second digital to analog conversion, the input streams have index a look up table. One signal modulates quadrature Q, carrier and the other modulates in-phase I, carrier. Sampling rate of the ...
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FPGA Architecture for OFDM Software Defined Radio with an optimized Direct Digital Frequency Synthesizer
... digital signal processing (DSP) for coding, decoding, modulating, and demodulating ...(OFDM), Quadrature Phase Shift Keying (QPSK), Fast Fourier Transform (FFT) Algorithms and most ...
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Online Full Text
... multiplexed-differential quadrature phase shift keying (PDM-DQPSK) optical label switching system with frequency swept coherent detected spectral amplitude code labels in ...payload ...
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Comparative Study of Digital Modulation Techniques Using MATLAB
... amplitude shift keying (ASK), quadrature phase shift keying (QPSK), binary phase shift keying (BPSK), frequency shift Keying (FSK) &On- off ...
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MODULATION AND DETECTION TECHNIQUES FOR DWDM SYSTEMS*
... and signal-to-noise ratio requirements, assuming amplified spontaneous emis- sion is the dominant noise ...differential phase-shift keying with interferometric detection, (c) ...
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Performance Evaluation of ½ Rate Convolution Coding with Different Modulation Techniques for DS CDMA System over Rician Channel
... Binary phase shift keying (BPSK), Quadrature phase shift keying (QPSK) and Quadrature amplitude modulation (QAM- 16) for direct sequence code division multiple ...
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DESIGN OF SIMULINK MODEL FOR OFDM AND COMPARISON OF FFT- OFDM AND DWT-OFDM.
... Recently wavelet transform has also been proposed as a possible analysis system when designing sophisticated digital wireless communication systems, with advantages such as transform flexibility, lower sensitivity to ...
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DC -16-17,18-19.pptx
... Overview of Lecture 17 Digital-to Analog Conversion Bit Rate and Baud Rate Carrier Signals Amplitude Shift Keying ASK Frequency Shift Keying FSK Phase Shift Keying PSK Quadra[r] ...
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Evaluation of SNR for AWGN, Rayleigh and Rician Fading Channels Under DPSK Modulation Scheme with Constant BER
... Fading refers to the distortion that a carrier-modulated telecommunication signal experiences over certain propagation media. In wireless systems, fading is due to multipath propagation and is sometimes referred ...
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Analytical Evaluation of a Hybrid Chaotic Shift Keying [CS QCSK] in a CDMA System
... chaos shift keying (CS-DCSK) and Quadrature chaos shift keying (QCSK) scheme, a novel CS-QCSK modulation scheme called code shifted Quadrature chaos shift keying is ...
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A Study on FPGA Based Digital Modulators
... QPSK modulation has a good BER performance and is very suitable implementations require 1-2 bps/Hz (bit per second per Hertz) spectrum efficiency and is commonly used in wireless communication [9]. Modulated ...
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Comparative Analysis of OOK, BPSK, DPSK and PPM Modulation Techniques for Intersatellite Free Space Optical Communication
... The BPSK modulation technique is the coherent detection technique. In optical communication, the carrier is always taken as the laser [7]. The demodulation can be done by two methods homodyne and heterodyne detection. ...
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FPGA Implementation of QPSK modulator by using Hardware Co-simulation
... (Quadrature Phase Shift Keying) is one of the modulation schemes used in wireless communication system due to its ability to transmit twice the data rate for a given ...
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