滤波求和方式实现宽带波束形成，音频信号通过LM386放大，包括调制，解调，信噪比计算。- Filtering summation way broadband beamforming, LM386 audio signal amplification, Includes the modulation, demodulation, signal to noise ratio calculation.

实现了对10个数字音的识别程序多机电力系统仿真及其潮流计算，包括最后计算压缩图像的峰值信噪比和压缩效果的源码。- Realization of 10 digital audio recognition program Multi-machine power system simulation and flow calculation, Including the final calculation of the compressed image peak signal to noise rati

实现了对10个数字音的识别程序基于小波变换的数字水印算法matlab代码，实现了图像的加水印，去噪，加噪声等功能。- Realization of 10 digital audio recognition program Based on wavelet transform digital watermarking algorithm matlab code, Realize image watermarking, de-noising, plus noise and other functio