image-construction-by-fft-and-wt

一款很不错的MATLAB优化视频教程，讲述详细，希望用得着的快快分享(A very good video tutorial of MATLAB optimization, described in detail, I hope to share useful for quickly)

说明：  matlab 实现汽车悬架分析，四分之一、二分之一，整车悬架悬架(matlab achieve vehicle suspension analysis, a quarter, half, vehicle suspension suspension)

Kaiser Window program written in matlab for a given signal

基于反向传播神经网络(Back Propagation, BP)的数据分类简单应用(Simple application of data classification based on Back Propagation (BP))

an ideal lowpass filter

Stores the "house" data set in X.

说明：  声波方程正演模拟小模型波场绘制。只有一层，震源在中间。C程序，Matlab绘图。(Acoustic wave equation forward modeling small-scale model wave field rendering. Only one layer, source in the middle. C program, Matlab graphics.)

精通MATLAB神经网络 第18章 (part 18 )

说明：  针对低信噪比环境下基于能零比的端点检测方法准确率低的问题,提出了一种结合谱减法和短时零熵法的端点检测方法。首先通过功率谱减法对带噪语音进行降噪处理,然后结合短时平均过零率特征与谱熵特征,构造出一种新的语音参数,即短时零熵,最后运用双门限算法进行端点检测。实验结果表明该方法在复杂噪声环境下具有良好的端点检测性能,降低了检测的误判率。(To solve the problem of low accuracy of endpoint detection method based on energy zero ratio in low SNR environment, an endpoint detection method combining spectral subtraction and Short-term zero entropy method is proposed. Firstly, the noise is reduced by power spectrum subtraction, then a new speech parameter, short-time zero entropy, is constructed by combining the short-time average zero crossing rate and spectral entropy. Finally, the double threshold algorithm is used for endpoint detection. The experimental results show that this method has good performance of endpoint detection in complex noise environment, and reduces the rate of detection error.)

ofdm在瑞利信道的仿真程序还有snr，ber图形(ofdm simulation program in Rayleigh channel also snr, ber graphics)