Optical receivers configured to demodulate phase modulated optical signals. In one example, an optical signal receiver includes an optical resonator configured to receive an arriving optical signal and to emit an output optical signal in response to receiving the arriving optical signal, the optical ...
z = pmdemod(y,Fc,Fs,phasedev,ini_phase)specifies the initial phase of the modulated signal, in radians. Examples collapse all Recover Phase Modulated Signal from AWGN Channel Set the sample rate. To plot the signals, create a time vector. ...
AN EXPERIMENTAL INVESTIGATION OF ASYNCHRONOUS DEMODULATION OF A PHASE-REVERSAL-MODULATED CARRIER, Thus with a signal-to-noise ratio of 18 db or greater, the asynchronous demodulation system has a measured probability of error of 0.001 or less; a ... Rudolph, F. A,Myers, G. A 被引量: 0发...
PURPOSE: To provide a demodulation circuit for pulse-width modulated signal, which can demodulate PWM signals into analog signals having a slope characteristic such that it is suitable for the control characteristic of an object to be controlled. ;CONSTITUTION: A demodulation circuit incorporates a PW...
The procedure and demodulation of the frequency or phase-modulated data signal, which is carried along power lines (21) and is used for communication between the power meter (22) and data acquisition devices (4) and/or data reading devices (6) is based on the application of the Goertzel's...
Accordingly, the phase demodulation method minimizes the phase error generated when a noise is propagated in phase space during a demodulation time of the phase-modulated communication signal, using a minimum number of sampling times and a minimum number of calculation times. 展开 ...
4. A receiver as set forth in claim 1, wherein said modulated carrier signal is divided into two signals having a predetermined phase relationship one to another, and wherein said receiver is comprised of first and second sigma-delta signal converters each having an input stage comprised of sa...
Method and apparatus for demodulating an angle modulated signal In an improved demodulator, which is primarily applicable to the demodulation of angle modulated signals with a poor carrier-to-noise ratio (e.g. satellite TV signals received with a small aperture dish antenna), an intermediate freq...
A carrier wave phase-modulated signal having 2M states, M being an integer, is demodulated by converting it into a quadrature two-way baseband signal by multiplying it by a local osciallator signal (20) at the translated carrier frequenc... M Alard 被引量: 0发表: 1995年 A fast sampling...
A phase modulated signal is quadrature demodulated (37) using a locally generated (36) signal which has a frequency different from that of the received carrier.;The demodulation of a known symbol sequence and of a data symbol sequence respectively result in first and second signal vectors. The ...