pinjie

mit的信号处理考试试卷，非常棒！可以理解老美的学习思路。(mit signal processing exam papers, great! Americans can understand the idea of learning.)

说明：  自适应网格划分通用程序包，美国伯克利大学开发。(Adaptive Mesh generic package, the United States developed at the University of Berkeley.)

认知无线电是一种用于提高无线电通信频谱利用率的新的智能技术. 首先简述认知无线电的背景和概念,针 对认知无线电的频谱感知功能,详细地分析基于能量检测的频谱检测方法,在此基础上研究了噪声方差的不确定 性对检测性能的影响. 针对无线信号检测具有本地局域性和能量检测存在信噪比极限的特点,提出一种分布式有 限合作检测机制,推导出基于“OR”规则的有限合作机制的检测概率,并进行Monte Carlo仿真.(Cognitive radio is a radio communications spectrum used to improve the efficiency of the new smart technology. First, the background and outlined the concept of cognitive radio, spectrum sensing for cognitive radio capabilities, a detailed analysis of the spectrum based on energy detection test In this study the noise variance based on the uncertainty of the detection performance. for wireless signal detection with local detection of localized and there is signal to noise ratio limit of the energy characteristics of a distributed cooperative detection mechanism, derived out based on " OR" rules of the detection probability of the limited cooperation mechanism and conduct Monte Carlo simulation.)

关于维纳滤波器,维纳滤波程序，有注释，比较实用(Wiener filtering process, more practical)

排队论，讨论单窗口单队情形，两窗口单队情形。分别计算平均等待时间，平均逗留时间，平均每分钟服务的顾客人数。(Queuing theory to discuss the situation single-window single team, two windows one team situation. Calculate the average waiting time, average length of stay, the average number of customers per minute service.)

基于BP的l1范数逼近法~~~~~~~~~~~~~(Approximation method based on BP s l1 norm)

语音识别的matlab实现 不过是p-file 可以运行 (Matlab voice recognition is the realization of p-file to run )

说明：  电压对有功灵敏度计算公式，原理为以潮流计算方程为基础，对潮流方程进行线性化，并且交换顺序(The calculation formula of the voltage to the active sensitivity is based on the power flow calculation equation, the power flow equation is linearized, and the exchange sequence)

一个详细的MIMO编程，包含各种衰落模型，运用空时网格码实现。(MIMO a detailed program includes a variety of fading model, the use of space-time trellis code to achieve.)

Generate PWLF file from Matlab for Cadence spectre simulation