quadrature-phase (Q)
Wideband Burst by Burst Adaptive Modulation Using Reduced Complexity In Phase/Quadrature Phase Turbo Equalization
... Binary Phase Shift Keying (BPSK) and Quadra- ture Phase Shift Keying (QPSK) modulation schemes [7] and to limited Channel Impulse Response (CIR) durations, since the computational complexity incurred by the ...
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Reduced Complexity In phase/Quadrature phase Turbo Equalisation Using Radial Basis Functions
... A novel reduced complexity Radial Basis Function (RBF) neural network based equaliser, referred to as the In-phase/Quadrature-phase RBF Equaliser (I/Q-RBF- EQ), is proposed. The ...
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Reduced Complexity In Phase/Quadrature Phase M QAM Turbo Equalization Using Iterative Channel Estimation
... and Q component of the transmitted signal ...and Q signal components in comparison to all of the possible I/Q phasor combinations considered by the conventional trellis-based ...
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Trellis Coded Modulation Schemes Using A New Expanded 16-Dimensional Constant Envelope Quadrature-Quadrature Phase Shift Keying Constellation
... envelope quadrature-quadrature phase shift keying (CEQ 2 PSK) symbols from Saha and Birdsall or four CEQ 2 PSK symbols recently discovered by Cartwright and also introduced ...
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DIFFERENTIALLY ENCODED QUADRATURE PHASE SHIFT KEY COMMUNICATION AND REAL-TIME IMPLEMENTATION
... C. Control mode – Due to the DC decoupling capacitors on the inputs and outputs of the DSK, it is impossible to relate any signal much lower than around 100 Hz. This prevents the straight output of the control loop ...
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Reduced Complexity In phase/Quadrature phase Turbo Equalisation using Iterative Channel Estimation
... Guard Data Tailing Bits.. non-spread speech burst.[r] ...
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Close form expression of one tap normalized LMS carrier phase recovery in optical communication systems
... laser phase noise and the equalization enhanced phase noise ...carrier phase recovery (CPR) is carried out and the close-form expression is investigated for quadrature phase shift ...
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DPSK OFDM System for Reliable Data Transmission using QRcode System in Mobile Devices
... The OFDM modulation uses orthogonal frequency subcarriers to transfer data and boot con fine image blur, which is essentially a low pass filter, to an arm and a leg frequency components one that low frequency data bits ...
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Five Methods to Mitigate Rayleigh Fading
... Clarke developed a model for flat fading and found that the amplitude of the received signal in in-phase and quadrature phase are Gaussian distributed with a Doppler s[r] ...
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SECURITY IN COGNITIVE RADIO NETWORK
... (Quadrature Phase Shift Keying is a DSBCS modulation scheme with digital information for the ...quadriphase Phase Shift Keying, 4-Phase Shift Keying or 4-Quadrature Amplitude ...
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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 access(DS- CDMA) system using ...
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Comparative Study of Digital Modulation Techniques Using MATLAB
... A comparative study have been done of digital modulation techniques used in wireless communication system. The simulation model and the output waveform of the different digital modulation techniques have been discussed ...
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High dimensionality carrierless amplitude phase modulation technique for radio over fiber system
... include quadrature phase shift keying (QPSK), quadrature amplitude modulation (QAM), and orthogonal frequency division multiplexing (OFDM) with coherent detection and digital signaling processing ...
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Floquet Eigenvectors Theory of Pulsed Bias Phase and Quadrature Harmonic Oscillators
... We presented the full analytical description of a new class of pulsed bias phase-quadrature oscillators. Intro- ducing a new methodology entirely based on system state Floquet eigenvectors we proved ...
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De-Interleaved Subsampling Architecture for Homodyne Receivers
... In recent years, there have been significant research efforts to design and develop transceivers that are capable of working with different standards in different frequency bands [1, 2]. The idea of multi- standard ...
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CMOS Phase and Quadrature Pulsed Differential Oscillators Coupled through Microstrip Delay Lines
... of phase noise with reduced energy requirements with respect to their non-pulsed ...coupled phase and quadrature system in ...decrease phase noise of generated fun- damental in particular at ...
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Design of a shunt active caused by nonlinear loads power filter to mitigate the harmonics caused by nonlinear loads
... linear electrical devices has led to a distortion in the output sine waveforms of source current and voltage to overheat and sometimes cause damage. This paper concentrates on the design and phase shunt active ...
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Current-Mode Four-Phase Quadrature Oscillator By Means Of Current Differencing Transconductance Amplifier
... four quadrature current outputs, the steady state of the oscillator is achieved after less than 1μs; (d) Because in this projected QO,all the output impedances are high,QO circuit be capable of getting connected ...
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An Integrated Analog Readout for Multi-Frequency Bioimpedance Measurements
... any other frequencies present, and keep the dc component proportional to the real or imaginary part of the impedance. The combination of the multiplication and the lowpass filter effectively imposes a frequency selective ...
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Evaluation of SNR for AWGN, Rayleigh and Rician Fading Channels Under DPSK Modulation Scheme with Constant BER
... Rayleigh fading occurs due to the multilink reception. In Rayleigh fading model the effect of the environment spreading to a larger area on a radio signal. It is one of the cheapest models of the signal propagation (i.e. ...
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