音频信号通过LM386放大，采用了小波去噪的思想，包含收发两个客户端程序。- LM386 audio signal amplification, Using wavelet denoising thought, Transceiver contains two client programs.

现代信号处理中谱估计在matlab中的使用，sar图像去噪的几种新的方法，实现了对10个数字音的识别程。- Modern signal processing used in the spectral estimation in matlab, Several new methods sar image denoising, Realization of 10 digital audio recognition progra.