velocity_filtering_based_on_make_zeta_output_0

使用matlab分析传统光学系统中加入三次相位掩模板之后其点扩散函数的焦点偏移(Analysis using matlab conventional optical system by adding three phase mask after the point spread function of its shift in focus)

恒虚预警处理的各种性能指标，在杂波边缘，多目标环境的选择上比较(Various performance indicators constant false alarm processing in clutter edge, more choice and more on target environment)

在MATLAB上运行，程序主要功能为改变输入图像的灰度和提取。(In MATLAB run, the program main function is to change the input image intensity and extraction.)

频谱分析的一个程序，分析细致！！研究频谱分析的可以可直接使用。 (Spectrum analysis of a program, and detailed analysis. ! Spectrum analysis can be used directly.)

利用基于直方图的自适应阈值方法实现分割前景与背景(The use of adaptive threshold method of histogram based segmentation of foreground and background)

对OFDM系统的仿真分析，对于初接触通信系统的朋友，会有所帮助，进一步了解ofdm。(OFDM system simulation and analysis，for who early contact with communication systems will help to better understand the ofdm。)

Computes the DFT of N real values and returns the first N/2+1 DFT coefficients. N is an integral power of two.

说明：  用FDFD模拟光子晶体光纤的色散的程序，主程序为FDFD.m，计算色散的为dispersion.m(FDFD simulation of photonic crystal fibers with a dispersion of the process, the main program for the FDFD.m, calculated dispersion for dispersion.m)

说明：  ：针对MP3 编码方式和帧结构进行分析，利用帧中的比例因子提出了一种压缩域水印算法。算法通过引入帧变化分析步 骤，很好地实现了水印的自适应嵌入。对于不同的系统要求，还可以通过修改门限信噪比的值SNRlim按需进行水印嵌入，使算法 具有更大灵活性。同时在牺牲一定的嵌入空间前提下，实现了水印信息的自同步。实验表明，对于不同风格的音乐，该水印算法 具有很好的不可听性。(In this paper，the encoding method and the frame structure of MP3 are expounded in detail，a watermark algorithm is proposed based on the scale factor in MP3 frame.By introducing the step of frame altering analysis，the algorithm can realize that watermarks is embedded adaptively.By modifying threshold SNRlim（the ratio of signal to noise），the algorithm can meet different requirements of some system，that is what enable the algorithm to have a bigger flexibility.Based on expense of some embedding positions，the watermark can be embedded with self-synchronization.The experiment results show this algorithm can get a good audio effect with various types of audio.)

说明：  用matlab编写的ADPCM编码和解码.里面包括了编码和解码的m文件.The algorithm is based on IMA ADPCM. (using Matlab prepared by the ADPCM encoding and decoding. They include coding and decoding m documents. The algorithm is based on IMA ADPCM.)