是本科毕设的题目，用于建立主成分分析模型，包括调制，解调，信噪比计算，抑制载波型差分相位调制，构成不同频率的调制信号，一种流形学习算法（很好用），信号维数的估计。- The title of the commercial is undergraduate course you Principal component analysis model for establishing, Includes the modulation, demodulation, signal to noise ratio calculation, Suppressed carrier type differential phase modulation, Constituting the modulated signals of different frequencies, A fluid manifold learning algorithm (good use), Signal dimension estimates.