lms

image watermarking method

CC2530NDK实验1——Z-STACK SensorDemo实验(CC2530NDK Experiment 1- Z-STACK SensorDemo experiment)

CEC2017单目标测试函数，分享给需要的同学们(CEC2017 single objective test function)

说明：  Matlab 函数逼近与拟合... 有理函数逼近... 常用的正交多项式逼近..各种最小二乘拟合...连分式逼近... Padé逼近... 傅里叶逼近...(Matlab Function Approximation and Fitting code)

旋转圆盘的传递矩阵算法计算变厚度圆盘的应力位移(Rotating disk of the transfer matrix algorithm to calculate the stress variable thickness disc displacement)

编程珠玑（第二版）中英双语版，附源代码，是本不错的代码优化指导书(Abas Programming (second edition) in both Chinese and English version, with source code, is the good code optimization guide book)

在matlab环境下，利用ode命令求解常微分方程组的学习算例(In the matlab environment, the use of the command for solving ordinary differential equations ode to learn examples)

编程实现State-Space对应功能，同一个输入在一个s函数和一个相同的传函下所得到的输出是相同的(State-Space corresponding programming function, the same input in a s the same function, and a transfer function of the resulting output is the same)

信号稀疏表示是一种新兴的信号分析和综合方法，其目的就是在过完备字典中用尽可能少的原子来表示信号。采用时频原子字典的信号稀疏表示能够有效地揭示非平稳信号的时变特征。信号稀疏表示吸引了研究者的大量关注，这种方法已经被应用到信号处理的许多方面，例如非平稳信号分析，信号编码、识别与信号去噪等。(Signal sparse representation is a new method of signal analysis and synthesis, and its purpose is in over-complete dictionary of atoms using as little as possible to represent the signal. When using frequency atom dictionary signal sparse representation can effectively reveal the time-varying characteristics of non-stationary signals. Signal sparse representation attracted a lot of attention of researchers, this method has been applied to many aspects of signal processing, such as non-stationary signal analysis, signal encoding, recognition and signal denoising.)

利用matlab软件设计并仿真下面的无线通信系统。模拟信源为单音频信号。模拟调制方式为ASK。信道为多径信道（仿真中2径），信道中噪声为加性高斯白噪声。采用相干解调接收。画出了解调器输出端性能曲线与点信噪比SNR的关系。(Software design and simulation using matlab the following wireless communication systems. A single analog audio signal source. Analog modulation is ASK. Channel multi-path channel (simulation 2 diameter), channel noise is additive white Gaussian noise. The use of coherent demodulation receiver. Draw the output of the demodulation performance curve and the point of the relationship between signal to noise ratio SNR.)