xianxingyucefengxi

使用蚁族算法，用MATLAB编程。实现优化编程，实用。(study MATLAB to use good idear.)

《Matlab工具箱应用》 张金明等编，原书扫描件(Applications, edited by Zhang Jinming Matlab toolbox, the original book scan)

msk调制，以前作业时编的，很基本的东西，貌似还有dpsk(msk modulation operation for the past, and very basic things, looks like there dpsk)

matlab code for Hough transform for circles

物理光学方法 近似计算散射体RCS POFACETS is an implementation of the physical optics approximation for predicting the radar cross section (RCS) of complex objects. It utilizes the scientific computational features of MATLAB and its Graphical User Interface (GUI) functions to provide an error-free encoding of input parameters and efficient calculation of RCS. POFACETS provides a convenient tool for a “first cut” at the RCS of complex shapes by representing its constituent parts by triangular facets. The software calculates the monostatic or bistatic RCS of the object for the parameters specified(POFACETS is an implementation of the physical optics approximation for predicting the radar cross section (RCS) of complex objects. It utilizes the scientific computational features of MATLAB and its Graphical User Interface (GUI) functions to provide an error-free encoding of input parameters and efficient calculation of RCS. POFACETS provides a convenient tool for a “first cut” at the RCS of complex shapes by representing its constituent parts by triangular facets. The software calculates the monostatic or bistatic RCS of the object for the parameters specified)

说明：  椭圆滤波器具有很好的窄带滤波能力，比普通的FIR,IIR滤波器有更简单的结构(Elliptic filter has very good ability to narrow-band filter than the common FIR, IIR filters have a more simple structure)

以matlab做pitch-shift的功能展示.基於phase-vocoder技術在頻域上做pitch-shift.(In matlab to do the pitch-shift function display based on phase-vocoder techniques in the frequency domain to make pitch-shift.)

A Novel Image Reconstruction Algorithm Based on Concatenated Dictionary This paper presents a novel method for image reconstruction, which decomposites the image by concatenating a redundant dictionary of several bases and then reconstruct the image efficiently by means of Matching Pursuit algorithm. The proposed method constructs the concatenated dictionary with cosine bases, wavelet bases and contourlet bases, which will lead to a better approximation of the original image. The experimental results show that the proposed algorithm can greatly reduce the computational complexity and generate a better reconstruction effect compared with previous methods.(A Novel Image Reconstruction Algorithm Based on Concatenated Dictionary This paper presents a novel method for image reconstruction, which decomposites the image by concatenating a redundant dictionary of several bases and then reconstruct the image efficiently by means of Matching Pursuit algorithm. The proposed method constructs the concatenated dictionary with cosine bases, wavelet bases and contourlet bases, which will lead to a better approximation of the original image. The experimental results show that the proposed algorithm can greatly reduce the computational complexity and generate a better reconstruction effect compared with previous methods.)

使用matlab来比较4种不同的编码的性能。环境是BEC（删除信道）。 信号串的长度为2000(Use matlab to compare the performance of four different codes. Environment is the BEC (binary erasure channel). Length of the signal sequence is 2000)

OFDM系统仿真 加入循环前缀 加燥 绘制误码率能量谱等(OFDM system simulation by adding cyclic prefix and drying to draw the error rate energy spectrum, etc.)