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利用粒子群优化算法实现两个变量求最大值，很实用的一个matlab程序(Particle Swarm Optimization)

说明：  matlab 仿真小程序集合,欢迎大家使用(matlab simulation package)

雷达发射线性调频信号，载频10GHz，线性调频信号带宽10MHz，脉宽5us，采样率自设，两目标距离雷达5000米和5020米 （1）模拟两个目标的回波，并进行脉冲压缩（匹配滤波），验证脉冲压缩对改善雷达距离分辨力的作用 （2）调整两个目标的间距从1米到20米，观察结果得出结论。(Radar transmitting chirp signal, carrier frequency 10GHz, chirp signal bandwidth of 10MHz, pulse 5us, sample rate set up, two goals the radar 5000 meters and 5020 meters (1) Analog two goals echo, and pulse compression ( matched filtering), verify pulse compression radar range resolution on improving the role of (2) to adjust the distance between two goals 1 meter to 20 meters, observations concluded.)

OOK调制方式，使用matlab simulink数字调制与数字解调(OOK modulation, using matlab simulink digital modulation and digital demodulation)

GPS码捕获，跟踪代码算法的仿真，这是基于GPS的仿真推导(GPS code acquisition, tracking algorithm simulation code, which is derived based on GPS simulation)

DICOM to NIfTI converter by Xiangrui Li

自建了一个matlab-simulink单机无穷大系统模型，用于进行简单的单机无穷大系统仿真实验(Self-built a matlab-simulink single-machine infinity system model for simple single-machine infinite system simulation experiments)

Imperialist Competition Algorithm - Source Code in MATLAB

ex9_1 脉冲信号调制 ex9_2 载波10MHz，带宽2MHz的线性调频信号及其频谱图 ex9_3 产生7位巴克码编码的二相码 ex9_4 产生7位巴克码和线性调频的混合调制信号 ex9_5 瑞利分布实现程序 ex9_6 瑞利分布＋杂波 ex9_7 相关对数正态分布杂波 ex9_8 相关weibull分布杂波 ex9_9 相干相关K分布杂波 ex9_10 线性调频信号的数字化正交解调 ex9_11 雷达脉冲压缩处理 ex9_12 二相编码信号的脉压处理 ex9_13 用FFT和FIR方法实现MTD处理(程序有错误) ex9_14 雷达的恒虚警处理（CFAR） ex9_15 比较相参积累和非相参积累 ex9_14 计算加性高斯白噪声准则下雷达探测的经典CFAR 二进制检测阈值和指定的虚警概率。 (瑞利噪声下快慢门限CFAR处理)(Ex9_1 pulse signal modulates ex9_2 carrier 10MHz, Linear Frequency Modulation signal of bandwidth 2MHz and its Spectrum Diagram ex9_14 calculation of classical CFAR under additive Gaussian white noise criterion Binary detection threshold and specified false alarm probability. (fast and slow threshold CFAR processing under Riley noise))

for Counting all repetitions of each elements repeated occurrences within a vector