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program is used to transfer data in a secure manner in wireless sensor network

Realization of alogrithm of chaos detection by determining Lyapunov exponents.

SAR 成像多种算法仿SAR 成像多种算法仿真MATLAB源码真MATLAB源码(SAR imaging of a variety of algorithm simulation MATLAB simulation of SAR imaging of a variety of algorithms really MATLAB source source)

产生L=31的gold序列，又两个移位寄存器输出的模2相加产生。(L = 31 generated sequences of gold, but also two shift registers generate the sum of the output mode 2.)

说明：  图片的阴影检测，是基于RGB空间模型的很适合初学者学习使用。(Image detection, is based on the RGB space model is suitable for beginners to learn to use.)

QPSK波形及其经过带宽为4hz的带通滤波器(QPSK waveform and its after 4HZ bandwidth of the bandpass filter)

滑模变结构控制的MATLAB仿真实例之一 滑模变结构控制的MATLAB仿真实例之一(Sliding Mode Variable Structure Control of the MATLAB simulation of sliding mode variable structure control, one of the MATLAB simulation)

ARM编程特别是系统初始化代码的编写中通常需要实现中断的响应、解析跳转和返回等操作，以便支持上层应用程序的开发，而这往往是困扰初学者的一个难题。中断处理的编程实现需要深入了解ARM内核和处理器本身的中断特征，从而设计一种快速简便的中断处理机制。需要说明的是，具体的上层高级语言编写的中断服务函数不在本文的讨论范围之内(ARM programming particular system initialization code in preparation usually need to achieve interruption of response Jump and return analysis, etc, in order to support the upper application development, which is often plagued by a problem beginners. Interruption of programming needs in-depth understanding of the ARM processor core and features of the interruption itself, be able to design a simple and rapid interrupt handling mechanism. There is a need to explain the specific upper prepared by the high-level language service interruption is not the function within the scope of discussion)

基于频带方差的语音端点检测，很有用的，大家自己好好看，不是太难(variance based on the frequency of speech endpoint detection, very useful, we all do well, not too difficult)

应用matlab求极值和求根的方法，并配有仿真程序和结果，可以用于数值实验时使用(Application matlab extremum and rooting, and with a simulation program and results can be used for numerical experiments)