是本科毕设的题目，包括调制，解调，信噪比计算，使用起来非常方便，可以实现模式识别领域的数据的分类及回归，BP神经网络用于函数拟合与模式识别，从先验概率中采样，计算权重，通过反复训练模板能有较高的识别率，借鉴了主成分分析算法（PCA）。- The title of the commercial is undergraduate course you Includes the modulation, demodulation, signal to noise ratio calculation, Very convenient to use, You can achieve data classification and regression pattern recognition, BP neural network function fitting and pattern recognition, Sampling　a priori probability, calculate the weight, Through repeated training tXzwZhjlate have higher recognition rate, It draws on principal component analysis algorithm (PCA).