Matlab-cdma2000

用matlab仿真随机信号白噪声，频谱分析，很好用(Matlab simulation of random signal with white noise)

本程序基于matlab编写，利用最小二乘法来拟合圆形。(Matlab based on the preparation of this procedure, using the least square method to fit round.)

关于介绍小波在信号和图像中的应用，有大量例子说明~(On the introduction of wavelet in signal and image applications, there are numerous examples to illustrate ~)

有限元分析的源程序，包括几乎所有的求解算法和程序，直接应用 不需要二次修改。(Finite element analysis of the source code, including almost all of the solution algorithm and procedures, direct applications do not require secondary modifications.)

说明：  This program is of optimization in Cognitive radio in spectrum sensing

本程序是Matlab GUI的一个程序，在GUI界面下运行显示在极坐标下的图形，可以作为了解GUI环境的一个很好的例子。希望对大家有用。(This program is based on Matlab GUI. It reprents the polar figure under GUI．It s a good example for beginners. I hope it can help you.)

本程序的功能是用支路追加法求阻抗矩阵,再用三相短路计算短路电流和电压(The function of this procedure is to use branch supplementary method for impedance matrix, with a three phase short circuit calculation of short circuit current and voltage)

多机器人避障仿真程序，实现了动画运行，基于matlab2009b，自己写的，(Multi-robot obstacle avoidance simulation program, to achieve the animation is running, based on matlab2009b, their written)

radar signal is a simple example of how u can generate such signal

说明：  认知无线电技术的提出是为提高频谱利用率，而认知无线实现的关键技术是频谱感知，众所周知协作检测提高了衰落环境中认知用户系统检测的性能，该文章是基于协作检测提出新的检测方案，利用了双门限方法提高了系统性能，兼顾带宽有限和增强性能两个方面，是基于门限检测的协作检测性能优化的前提。对以后门限优化协作检测非常有用。(In this paper, we employ a double threshold method in energy detector to perform spectrum sensing, while a fusion center in the cognitive radio network collects the local decisions and observational values of the secondary users, and then makes the final decision to determine whether the primary user is absence or not. Simulation results will show that the spectrum sensing performance channels is improved significantly under the proposed scheme as opposed to the conventional method.)