ex_5

基于LANDMARC的定位系统上进行的算法复杂度的减小的优化，包括了具体的优化后系统的实现，误差前后对比，改文章还提出了一种adaptive的定位算法，更利于外部变化环境下(In wireless networks, a client’s locations can be estimated using signal strength received from signal transmitters. Static fingerprint-based techniques are commonly used for location estimation, in which a radio map is built by calibrating signal-strength values in the offline phase. These values, compiled into deterministic or probabilistic models, are used for online localization. However, the radio map can be outdated when signal-strength values change over time due to environmental dynamics, and repeated data calibration is infeasible or expensive. In this paper, we present a novel algorithm, known as Location Estimation using Model Trees (LEMT), to reconstruct a radio map by using real-time signal-strength readings received at the reference points. This algorithm can take real-time signal-strength values at each time point into account and make use of the dependency between the estimated locations and reference points. We show that this technique can effectively accommodat)

Script generates list of owners for files in choose directory

基于adaboost算法的人脸检测，voila等人开发的源码，很经典，对初学者有一定的参考价值。(Adaboost algorithm based on the face detection, voila development the source code and it is classic, for beginners is of some reference value.)

Levenstein Coding MATLAB (by Marcos B, BSD license)

利用 MATLAB 实现窗函数法设计 FIR 滤波器，主要是选择合适的窗函 数进行截断运算 (Window function method using MATLAB to design FIR filter, main is to choose the appropriate letter for window blocking operations.First theoretically to approximate the unit impulse response of ideal filter hd [k], to be determined by the passband and stopband attenuation index window function types, determined by transition zone FIR filter order M length (or N), and finally USES MATLAB to calculate the window function value, and hd wN [k] [k] value, so that the design of FIR filter h (k) MATLAB provides the blackman window function is: w = blackman (N) Where N is the length of the window function.)

说明：  利用最速下降法可以求得非线性方程的最优解，运算过程简单易懂。(By using the steepest descent method, the optimal solution of nonlinear equation can be obtained, and the operation process is simple and easy to understand.)

关于matlabGUI的学习的基本代码 希望对各位有用，包括了最基本的使用 语法 以及后续的综合设计(About matlabGUI learning the basic code you want to be useful, including the use of basic grammar and a comprehensive design of the follow-up)

该程序是用于求解信赖域子问题的Powell dogleg方法(This routine solves the trust region subproblem by Powell s dogleg method.)

sar图像成像仿真（包括rd算法，cs算法，rdm算法，内含sinc插值法距离徙动校正）。(-RD algorithm---- SAR point target simulation results is quite good.)

自适应滤波LMS算法语音降噪，采集一段wma文件，加入高斯白噪声，然后实现降噪。(LMS adaptive filtering algorithm for speech noise reduction)