用于模拟GPS/北斗卫星接收机输出信号的功能,主要是串口输出GPS M12的信号,以及北斗OEM板的串口信号-Used to simulate the GPS/Beidou satellite receiver output signal is mainly serial output signal of GPS M12, as well as the serial Beidou OEM board signal

连续可变斜率增量调制（CVSD）是一种在卫星通信、移动通信和军事通信等领域应用非常广泛的语音信号波形编码方式。-Adaptive Digital s CVSD is a 1 bit/ sample vocoder. It supports 8khz to 16khz input sampling and yields 8kbit – 16 kbit/sec compressed speech. The CVSD codec is designed for use in military comm

基于Matlab的GPS卫星信号的采集仿真程序-Matlab GPS satellite signal acquisition-based simulation program