Heli_Da_Y

孙志忠书：偏微分方程数值解，第三章第一节：抛物方程的有限差分解法向前欧拉格式(forward euler difference scheme for parabolic problem)

document on fiber optic technology

说明：  VC6.0 读写matlab7.0的mat文件.分享此段代码，运行成功。(read the mat file of the matlab7.0,under the vc6.0)

ECG 信号处理源码 用于处理ECG 信号(ECG signal processing source)

多縫夫朗禾費衍射模擬,對於仿真干涉模擬有非常大的幫助(Multi-slit Fraunhofer diffraction Wo fees simulation, emulation interference simulation for a very big help)

Ac to dc converter allow the conversion of the continouis input current or voltage to alternative ouput current or voltage

说明：  qam 信号的产生和解调，以及误码率的计算，内包含多个小程序。(qam signal generation and demodulation, and bit error rate calculation, which contains many small programs.)

matlab65優化計算與設計操作說明,書中列有源碼及說明(matlab65 calculation and design optimization instructions, the book includes source code and explanations)

分别用三段直线和imadjust函数对图像进行对比度增强，并可以比较结果。(Three lines and imadjust function of image contrast enhancement, and can compare the results.)

对数谱最小均方误差语音增强算法（LSA-MMSE），对加入有音无音判决进一步提高信噪比，消噪效果非常好。适合各种平稳噪声。(right spectrum minimum mean square error speech enhancement algorithm (LSA- MMSE). sound right to a sound judgment without further improve signal-to-noise ratio, denoising effect was very good. For a wide range of stationary noise.)