基于MATLAB的数字频带通信系统的仿真 使用MATLAB中M语言完成QPSK的仿真 通过仿真得到QPSK和OQPSK信号经过带通后的波形-QPSK simulation based on the the MATLAB digital band communication system simulation using MATLAB M language QPSK and OQPSK signals after band-pass waveforms obtained by simulation