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Learn the basics of QPSK demodulation, the challenges of noise and interference, and some tips to improve your demodulator's performance and reliability.

This method inputs the IQ signal into the denoise network, and then the convolution neural network is used for demodulation. The loss function is the cross entropy of the demodulated symbol sequence ...

While the demodulator processes the data files, it shows the carrier demodulation process and, if the satellite has been received properly, the Lock Detector (red dot in Fig. 8 (a)) turns green and ...

Based on Optisystem 15 optical communication system simulation software, this paper builds a 100 Gbit/s rate DP-QPSK modulation format coherent optical transmission system simulation model, analyzes ...

Advanced modulation formats and their detection and demodulation QPSK; 90 degree optical hybrids; quadrature amplitude modulation (QAM); orthogonal frequency division multiplexing (OFDM); IQ receivers ...

The IQ demodulation plugin for PLACE has not been updated for the new features in PLACE 0.8 and will need to be updated before it can be used again. This is a relatively simple task: the Elm module ...

Pictured here are the simulated in-phase (left) and quadrature (right) waveform for a QPSK demodulator with a 1-MHz input sine wave experiencing a phase shift of 45°, 135°, 225°, and 315° every 5 µsec ...

As OFDM incorporating a component of optical carrier is useful in demodulation, IQ modulators are usually biased slightly away from Vπ to obtain the carrier tone 21.