hd1-hd2

说明：  MATLAB实现的huffman编码，并附有详细的过程说明(MATLAB implementation of the huffman encoding, together with a detailed description of the process)

胡广书例题matlab源程序,每章节均有,比较精彩(Hu Guangshu Examples Matlab source files, each chapter is more exciting)

一个雷达回波模拟的matlab程序包,含有在RCS服从卡方分布,瑞利分布,对数正态分布下目标的的雷达散射截面模拟子程序， 具有径向加速度,径向速度,径向距离的雷达回波模拟,有3-D图形显示.(A radar echo matlab simulation package, containing the RCS subject to chi-square distribution, Rayleigh distribution, lognormal distribution of the target radar cross section simulation subprogram, with the radial acceleration, radial velocity, radial distance the radar echo simulation, there are 3-D graphical display.)

建立cost231仿真模型函数，cost231是一种无线信道(Cost231 simulation model-building function, cost231 is a wireless channel)

bilinear zoom, subpixel technique for image processing

说明：  在低信噪比下，基于双稳随机共振的微弱信号检测(Weak signal detection based on bistable stochastic resonance at low signal-to-noise ratio)

这是一个matlab图形图像处理函数的详细列表，对于图像处理函数非常方便的。(This is a graphic image processing matlab a detailed list of functions for image processing function is very convenient.)

digital signal prosecing code

说明：  和声搜索算法，实现matlab开发环境下和声搜索的编程事例(Harmony search algorithm, matlab programming examples under development environment harmony search)

使用低通滤波器从含有噪声的信号中提取有用的正弦波 (见实验指导书 实验九 数字滤波器中的第一题) 目的：用数字滤波器从含有高频噪声的采样数据中提取正弦信号。 要求：①输入信号为一正弦波，并加入一个白噪声的干扰来模拟信号传输中的随机干扰信号（用以模拟含有噪声采样序列）。 （模拟含有噪声采样序列具体可用正弦波信号叠加高频噪声来实现，为了使滤波效果明显，本实验的高频噪声是用高频均匀分布白噪声（Uniform）通过Butterworth高通滤波器过滤生成的，高通滤波器的截止频率设为10倍输入信号频率。） ②在程序中设计一个低通巴特沃斯滤波器，以滤除信号中的噪声分量，提取输入的正弦波信号 。 ③可调节信号滤波器的截止频率和阶数，可显示滤波前与滤波后的时域信号。 ④给出滤波前与滤波后的频谱特性的显示。 (Using low pass filter extracting useful sine wave signal containing noise(see experiment instruction digital filter in the first nine questions)Objective: to use digital filter sampling data extract containing high frequency noise sine signal.Requirements: (1) the input signal is a sine wave, and add a white noise interference to simulate the random disturbance signal of the signal transmission (to simulate contains noise sampling sequence).(simulated the sampling sequence contains noise available sine wave signal superposition of high frequency noise, in order to make the filtering effect is obvious, the experiment of high frequency noise is Uniform distribution with high frequency white noise (Uniform) by Butterworth high-pass filter to filter generated, high-pass filter cutoff frequency set to 10 times the size of the input signal frequency.)(2) in the program design a low-pass butterworth filter, in order to filter out the noise in the signal component, extract the input sine wav)