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Short Fourier Transform for a non periodical signal

说明：  本书中包含有 所有MATLAB的函数中文简介 对英文不好的朋友 有很好的用处(This book contains all the MATLAB functions Introduction to the English is not good Chinese friends have a good use)

说明：  这是信道估计在matlab的详尽实现，已经调试成功，可以实现(Channel estimation in matlab detailed implementation, debugging has been successful, and can achieve)

研究了自然环境下的运动车辆的检测技术。讨论了各种车流量检测的算法，提出了可对存在渐变及重复性运动的场景进行建模的车流量检测算法，利用基于混合高斯背景建模方法，对背景进行更新，然后再利用所得的背景与当前视频帧进行相减，得到视频中车辆运动的前景图像，经过平滑去噪处理得到较为理想的车辆检测效果。(This paper studies the natural environment of moving vehicles in the testing technology Discussed the algorithm of vehicle detection all kinds of sports, Put forward the existing and repeatability of gradual change of scene modeling movement vehicle detection algorithm is proposed, Based on gauss background modeling method, Update to the background, Then reuse the background and the current income video frame subtracting on, Get the car in the prospect of motion video images, To deal with the noise through smooth get more ideal vehicle detection effect.)

一个基于matlab的fsk仿真，加入了高斯白噪声(Fsk the matlab-based simulation, by adding a Gaussian white noise)

一种求随机数的方法的实现，同余随机数，比混沌随机方法更好，能通过评测。(A Method for the Realization of the method of random numbers, random number with more than )

matlab中实现hough圆检测的源代码，检测效果还可以，测试可用(find circles in an image using matlab)

QAM,PSK,DPSK,FSK,MSK调制仿真，包括眼图输出，误码率输出，星座图，频谱，及实际wav文件的调制解调(QAM, PSK, DPSK, FSK, MSK modulation simulation, including eye diagram output, the output BER, constellation, spectrum, and actual modem wav files)

包含了matlab优化工具箱的大多数函数及描述.(matlab optimized functions and their descriptions.)

无线传感器网络中应用leach算法来识别恶意节点和剔除恶意节点。从而保证网络系统的寿命最长。(In wireless sensor network，cluster algorithm of nodes is all effective approach and key technology to implement energy saving and flexible management．To improve security and lifetime of clustering network，a secure clustering was pro— posed based on the random and parallel cluster header election algorithm and pre—distributed key scheme．In hypothetical network model，it can elect the cluster header nodes and identify and get rid of malicious nodes，and in data telecommuni— cations，the communication security Can be achieved by using encryption algorithm and thus the network lifetime Call be prolonged．)