一个产生PN15伪随机序列并模拟噪声干扰和统计误码率的通讯系统仿真程序，主要实现了PN序列的同步算法和实时误码统计-PN15 have a pseudo-random sequence and noise simulation and statistical error rate communications system simulation program, the main PN sequence of real-time synchronization algorithm and err