In the case of carrier-recovery in which coherent demodulation is to be performed on QAM-type signals, the Costas loop has found wide-spread use as an unbiased low-variance practical solution. It can ...

The DVB-S2/S Demodulator IP core is a silicon-proven IP core extracted from Production chips. It contains tuner Rx gain control which makes PDM Demodulator a high performance (A)PSK output Rx at AGC.

In radio communications, one way to generate single sideband (SSB) signals is to make a double sideband signal by feeding a carrier and a modulation signal into a balanced modulator to create a double ...

Therefore, it is very important to get the accurate and effective cavity length information. Traditional demodulation techniques for F-P cavity suffer from low speed, high cost, and poor robustness.

Abstract: We present a new method using the combination of the Fast Fourier transform (FFT)-support vector regression (SVR) algorithm for fast spectral demodulation of an optical fiber torsion sensor ...

x_train_CU = x_train_CU.reshape((60000, 28 * 28)).astype('float32') / 255.0 x_test_CU = x_test_CU.reshape((10000, 28 * 28)).astype('float32') / 255.0 # Define the ...

Corresponding research on carrier synchronization for QPSK coherent demodulation is carried out. By comparing several carrier recovery loops, The quaternary loose tail loop is selected as carrier ...

Patrick Yang, CTO at WCH, has recently unveiled the CH570 RISC-V SoC with 2.4GHz wireless and USB 2.0 (host & device) as an upgrade to the popular CH32V003 general-purpose RISC-V MCU with more ...

This precision is achieved using electro-optic modulators to generate stable, finely tunable demodulation signals (Nikles et al., 1997). The coherence requirements of Brillouin scattering impose ...

College of Electrical Engineering and Control Science, Nanjing Tech University, Nanjing 211816, China School of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, China ...