EbookSignalDetectionandEstimation

very simple watermarking using matlab. to hide a message in cover image..

熟悉如何将matlab中的函数转化为C语言，的基本方法与操作代码(Familiar with matlab function into C language, the basic methods of operation code)

有趣的matlab程序，让大家感受matlab的魅力(Interestingly matlab program, so that we feel the charm of matlab)

提取信号七个基于瞬时信息的特征：零中心归一化瞬时幅度功率谱密度的最大值,零中心归一化瞬时幅度绝对值的标准偏差，零中心非弱信号段瞬时相位非线性分量绝对值标准偏差，零中心非弱信号段瞬时相位非线性分量标准偏差，零中心归一化的非弱信号段瞬时频率绝对值的标准偏差，一个信号段的归一化瞬时频率功率谱密度的最大值，根据信号 QPSK 和16QAM在 XI 轴投影的不同表现，提出特征参数。(extract information based on the instan eous features : In the center is one of the instantaneous rate of the power spectral density of the maximum, is a center to the absolute value of the instantaneous rate of the standard deviation, Non-zero weak signal instantaneous phase of the nonlinear component absolute standard deviation, Non-zero weak signal instantaneous phase of the nonlinear component standard deviation, In the center is one of the non-weak signal of the absolute value of the instantaneous frequency standard deviation, a signal to one of the instantaneous frequency of the power spectral density of the maximum, According to 16QAM and QPSK signals XI axis projection in the different performance parameters raised.)

COMPLETE AND STABLE PROJECTIVE HARMONIC INVARIANTS FOR PLANAR CONTOURS RECOGNITION

matlab编写的多元变量最小化问题的downhill方法求解(matlab prepared multi-variable minimization problem downhill method)

koch曲线，分型课程中经常用到的，很好(koch)

QPSK调制与解调，低通滤波器采用了时域和频域两种实现方式，截止频率fc = 200hz,采样频率fs= 1000hz,欢迎下载参考！(QPSK modulation and demodulation, using a low-pass filter with a time domain and frequency domain implemented way, the cutoff frequency fc = 200hz, the sampling frequency fs = 1000hz.Welcome to download !)

Chicken Swarm Optimization（CSO）鸡群优化算法，2014年提出的群智能优化算法。 Bird Swarm Algorithm（BSA）鸟群算法，2015年最新的群智能优化算法。 作为两种全新的群智能优化算法，CSO和BSA都具有简单，良好扩展性的特点，是天然的多种群算法！ http://cn.mathworks.com/matlabcentral/profile/authors/3317597-xian-bing-meng 有关算法信息，可在上述网站查询。 希望对大家有用！ (Attachment is a file containing two demos for the nature-inspired algorithms, Chicken Swarm Optimization (CSO) and Bird Swarm Algorithm (BSA), which are proposed in 2014 and 2015, respectively. With the merits of innate multi-swarm and self-adaptive algorithms, the two new metaheuristic algorithms may show their superiorities over some other metaheuristic algorithms.)

利用MATLAB实现2ASK信号的调制解调，其中振幅键控信号随机产生。(Using MATLAB realize modem 2ASK signal, wherein the amplitude shift keying signal is generated randomly.)