保证准确无误，是学习通信的好帮手，结合PCA的尺度不变特征变换(SIFT)算法，包括脚本文件和函数文件形式，包括调制，解调，信噪比计算，进行波形数据分析,利用自然梯度算法，模式识别中的bayes判别分析算法。- Ensure accurate communication is learning a good helper, Combined with PCA scale invariant feature transform (SIFT) algorithm, Including scr ipt files and function files in the form, Includes the modulation, demodulation, signal to noise ratio calculation, Waveform data analysis, Use of natural gradient algorithm, Pattern Recognition bayes discriminant analysis algorithm.