基于matlab中simulink下的通信系统在BPSK和QPSK调制方式和AWGN信道特性下的无编码和卷积编码误码率仿真-Communication system uses BPSK and QPSK modulation method respectively with under no coding and convolution code in the coding and decoding ber, simulating the error of signal transmission

产生64QAM基带通信系统发射机：基带成型滤波采用3种方式（1）采用每个符号调制一个成型滤波函数，然后将各个函数进行时域叠加的方法； （2）采用信号与低通滤波器响应函数卷积的方法；（3） matlab自带的升余弦函数-Produce 64QAM baseband communication system transmitter: baseband shaping filter uses three ways (1) the use of a molding each symbol modul