对信号进行频谱分析及滤波，电力系统暂态稳定程序，可以进行暂态稳定计算,音频信号通过LM386放大。- The signal spectral analysis and filtering, Power System Transient Stability Program, can be transient stability, LM386 audio signal amplification.

音频信号通过LM386放大，滤波求和方式实现宽带波束形成，包括脚本文件和函数文件形式。- LM386 audio signal amplification, Filtering summation way broadband beamforming, Including scr ipt files and function files in the form.

用matlab实现多种滤波器，中值滤波，均值滤波。对图像进行插值放大等等(using Matlab to achieve a variety of filters, median filter, mean filtering. Interpolation of images and so on.)