fx_signal_fft_analysis

说明：  这个是两个matlab的列子，一个是函数的微分设计，一个是函数的求导，希望对去学matlab的人有所帮助(there are two examples for matlab,one is designed for function differential,the other is designed for function derivative)

DCT and Image Compression In the JPEG image compression algorithm, the input image is divided into 8-by-8 or 16-by-16 blocks, and the two-dimensional DCT is computed for each block. The DCT coefficients are then quantized, coded, and transmitted. The JPEG receiver (or JPEG file reader) decodes the quantized DCT coefficients, computes the inverse two-dimensional DCT of each block, and then puts the blocks back together into a single image. For typical images, many of the DCT coefficients have values close to zero these coefficients can be discarded without seriously affecting the quality of the reconstructed image. The example code below computes the two-dimensional DCT of 8-by-8 blocks in the input image, discards (sets to zero) all but 10 of the 64 DCT coefficients in each block, and then reconstructs the image using the two-dimensional inverse DCT of each block. The transform matrix computation method is used.

说明：  包括三个.M文件,分别用于处理生成直方图,图象的线形拉伸和均衡化(Of three. M document for the deal to generate the histogram, respectively, the linear image stretching and equalization)

针对样本协方差矩阵求逆方法中采样点小于阵元个数时作出的仿真。此改进方法可以在采样点小于阵元个数时提高波束形成器的性能。(For the sample covariance matrix inversion method of sampling is less than the number of array elements made the simulation. This improved method can be sampled at less than the number of array elements to raise the beamformer performance.)

基于rof模型 投影算法 实现去噪 去模糊 已经写了一部分 没有写完 呵呵 (Rof model based on projection algorithm to realize the denoising fuzzy has written a part of didn t finish writing ha ha )

matlab数值分析线性方程组严格对角占优，选主元计算程序(Matlab numerical analysis of linear equations strictly diagonally dominant, pivoting calculation program)

is95系统的基带仿真程序。自己可以去调试，(IS95 baseband system simulation program. They are able to debug,)

segmentation of the image end eliminate backgroung useful for digital watermarking

simulation of 3_phase rectifier in matlab simulink

一个模糊控制在汽车方面的应用程序，a car fuzzy control can be well applied to the characteristics FUZZY (a car fuzzy control can be well applied to the characteristics FUZZY )