载波频率 Resources

Showing items tagged with "载波频率"

I've recently developed a DSB-SC signal generation and demodulation program using discrete signal processing (DSP) techniques. The implementation generates DSB signals with a 150kHz carrier frequency, using a mixed audio signal of 500Hz and 2000Hz. The program adds noise with SNR=1dB and employs quadrature demodulation for signal recovery. I've included spectral diagrams showing both pre-demodulation and post-demodulation states, demonstrating successful reconstruction of the original signal. This project serves as an educational resource for communication systems learning.

MATLAB 325 views Tagged

With a carrier frequency of 20 Hz and an information rate of 2 Baud, generate and visualize QPSK signal waveforms in MATLAB, including implementation details for modulation and waveform plotting techniques.

MATLAB 234 views Tagged

PSK communication signal blind demodulation test program where final1_1 and final1_2 generate modulated signals using different PSK implementations, final2_1 performs carrier frequency pre-estimation, final2_2 conducts symbol rate pre-estimation, final3 achieves carrier synchronization, and final4 implements symbol synchronization to successfully demodulate the original signal.

MATLAB 381 views Tagged