HHT

This code extract Gyro calibration Coefficients of an IMU.

说明：  信号处理中的加窗程序，可以加汉宁窗等窗函数(Windowed signal processing program, you can Hanning window function windows, etc.)

关于半脆弱水印的几篇文章，其中包括小波变换的应用以及contourlet变换的应用等，涉及领域为半脆弱数字图像水印已经篡改检测。(Semi-fragile watermarking of several articles, including the application of wavelet transform and Contourlet transform application areas for semi-fragile digital image watermarking has tamper detection.)

说明：  利用中值滤波和小波相结合的方式，去除信号中含有的随机噪声和脉冲噪声(The method of combining median filter with wavelet is used to remove the random noise and impulse noise in the signal)

为大家提供了粉色噪声产生方法的一段matlab程序(to provide you with a pink noise of a Matlab procedures)

说明：  均匀线阵情况下的，相干信号的产生，并不是入射后的信号，而是原始的相干信号，希望各位不会搞错(Uniform linear array case, the coherent signal generation, not the signal after the incident, but the original coherent signals and hope that will not be wrong)

建立ARMA模型，进行数据的预测，效果很好，这里是其中的代码(the code of the ARMA)

a program compiled by matlab to computer more than 30 of gravity parameter from a gravity modle

ICP shape detection algorithm for 2 mesh

直接序列扩频代码，完成直接序列扩频的扩展功能(Direct sequence spread spectrum code to complete the extended functionality of direct sequence spread spectrum)