本算法主要是16QAM的算法，通过基带调制和解调，将码字映射到I和Q星座图上，并在不同的SNR下，将理论误码率和实际误码率比较，经验证有效。适合初学者逐步学习QAM。-The algorithm This algorithm is 16QAM, by the base band modulation and demodulation, the code word is mapped to the I and Q constellation and under different SNR, the theoretical bit error rate and the actual error rate, proven effective. Suitable for beginners to learn step by step QAM.