dosc

基于Matlab的QPSK调制解调的仿真程序,希望对大家有所帮助(Matlab-based simulation of QPSK modulation and demodulation process, want to help everyone)

数字信号处理中，希尔伯特变换器优化设计研究学习(Digital signal processing, the Hilbert converter optimized design of the study)

函数执行时间统计, 利用了C++类的自动释放功能(count function time costs)

跳扩频信号的时频分析，对研究信号检测与参数估计的非常有帮助，时频图清晰明了，很好的程序(When frequency hopping spread spectrum signal analysis, the study of signal detection and parameter estimation is very helpful, time-frequency diagram clarity, good program)

　VC + + 与MATLAB 混合编程,可以将VC 优秀的可视化编程能力和MATLAB 强大的计算能力结合起来。 分析了C 语言与MATLAB7. x 在接口的特点,详细介绍了VC + + 6. 0 与MATLAB7. x 混合编程的三种方法: MATLAB 引擎、MATLAB 编译器和MATLAB COM 编译器(VC++ Mixed with MATLAB programming, can be excellent VC Visualization MATLAB programming capacity and computing power together. Analysis of the C language and MATLAB7. X in the interface characteristics described in detail VC++ 6. 0 and MATLAB7. X mixed programming in three ways: MATLAB engine, MATLAB Compiler and MATLAB COM compiler)

说明：  matlab处理音频信号显示音频信号的频谱图，然后滤波，并对滤波前后音频信号的频谱图进行对比，接着对原始音频信号的频谱去掉若干个点与远视音频信号的频谱比较，最后对音频信号的频谱及相位进行三维显示(audio signal processing matlab)

As we know, the energy needed for sensors should be electrical. So the rst step before start to work is to convert environmental energy to electrical one. Inside the node there are dierent components for sensing the area, collecting data and processing the data. So the main dierent part of this kind of nodes, in compare of WSN nodes, is the power part. Once the stored energy reach to a certain amount, the power supply for micro controller and transceiver will start to work. They will continue to work until they have energy, as soon as the energy nish, they stops and energy storage device start to work to save energy again. The other fact should be consider about EH-WSN node is that the available energy can change in dierent nodes. So every node has its own harvesting rate.

移动最小二乘法（MLS）一维matlab计算程序，用于曲线拟合(Moving Least Squares (MLS) one-dimensional calculation matlab program for curve fitting)

牛顿-拉夫逊法在数学上是求解非线性代数方程组的有效方法，其要点是把非线性方程求解过程变成反复地对相应的线性方程进行求解的过程。(Newton- Raphson method in mathematics is an effective method for solving nonlinear algebraic equations, the point is that the non-linear equation solving process into the process repeated for the corresponding linear equation solving.)

It is fast sparse linear programming solver, with fast speeder.