CircAdaptTriSeg_code

This LDPC software is intended as an introduction to LDPC codes computer based simulation. The pseudo-random irregular low density parity check matrix is based on Radford M. Neal’s programs collection, which can be found in [1]. While Neal’s collection is well documented, in my opinion, C source codes are still overwhelming, especially if you are not knowledgeable in C language. My software is written for MATLAB, which is more readable than C. You may also want to refer to another MATLAB based LDPC source codes in [2], which has different flavor of code-writing style (in fact Arun has error in his log-likelihood decoder). (This LDPC software is intended as an introduction to LDPC codes computer based simulation. The pseudo-random irregular low density parity check matrix is based on Radford M. Neal s programs collection, which can be found in [1]. While Neal s collection is well documented, in my opinion, C source codes are still overwhelming, especially if you are not knowledgeable in C language. My software is written for MATLAB, which is more readable than C. You may also want to refer to another MATLAB based LDPC source codes in [2], which has different flavor of code-writing style (in fact Arun has error in his log-likelihood decoder).)

利用Canny的方法实现边沿检测，核函数采用高斯核，sigma大小可以任意调节，阈值也可以任意选。界面优美。(Does the method of using Canny edge detection, the function USES the gaussian kernel, sigma size can be adjusted, and the threshold can be arbitrarily chosen. Beautiful interface.)

对AR（4）模型的经典功率谱估计，并与真实功率谱作比较。采用了welch方法，协方差法，burg方法(For AR (4) model of the classic power spectrum estimation, and with true power spectrum for comparison. Welch method using covariance method, burg method)

PRML书本代码，PRML是一本机器学习经典教材，这里给出这本教材相应的代码。(Pattern recognition has its origins in engineering, whereas machine learning grew out of computer science. )

说明：  matlab模拟透镜的初级相差,求出其初级相差。(matlab )

基于源板块法的matlab模拟无升力圆柱绕流程序。空气动力学中的一个实验(Matlab source plate method based on simulation of flow around a cylinder without lift procedure. Aerodynamics of an experiment)

滤波器高斯噪声信道模型和jake s信道模型上的二进制相位调制，matlab实现源码(bpsk on the filtered gaussion noise channel model and jake s model ,matlab code.)

北航实习相关实验。 实验一：陀螺仪关键参数测试与分析实验、加速度计关键参数测试与分析实验 实验二：惯性测量单元安装误差系数标定实验 实验三：惯性导航综合实验 实验四：基于运动规划的惯性导航系统动态实验 实验五：惯性基组合导航及应用技术实验 惯性技术习题答案1-5 内含相应程序(BUAA practice related experiments, Containing the corresponding procedures)

产生正交幅度信号，可以产生16,32,64，128等阶数的信号(QAM signal generlize)

基于粒子群模糊聚类算法，相比传统聚类算法，效果好很多(Fuzzy clustering based on particle swarm algorithm, compared with the traditional clustering algorithm, the effect is much better)