kmeans

说明：  一个完整的OFDM仿真程序，采用QPSK调制，有信道估计，大家交流下！(A complete OFDM simulation program, using QPSK modulation, a channel estimation, to share next!)

power flow algorithm for Transmission Systems

说明：  一篇全面介绍Dantzig selector的英文文章，37页，用于压缩感知的重构(The Dantzig selector: statistical estimation when p is much larger than n)

说明：  介绍了信道估计中LS算法的matlab程序代码(Introduced in the LS channel estimation algorithm matlab code)

a technique for filtering signals. it is a m.file

fingerprint recognization with more dip results

matlab session for 2014 class

认知无线电频谱感知能量检测算法，适用于新手学习和工程仿真使用。(Cognitive radio spectrum sensing energy detection algorithm, suitable for novice learning and using engineering simulation. )

射线追踪,包含了起点和终点的射线函数，对于地震传播研究具有重要意义！(Raytracing in a v(z) world. The toolbox contains functions forshooting fans of rays and functions for tracing rays with specific start and end points. General multi-bounce rays with any number of mode conversions can be traced. Automatic routines for P-P and P-S primaries in shot-gather geometry are provided for convenience. Any recording geometry can be used but most functions vectorize (e.g. are most efficient) for shot-gather geometry. Only traveltimes and rayparameters are detemined, not amplitudes. In these routines, the velocity models should be considered as "background" models. This means that the depths at which flections and mode conversions occur are dependent of the depths given as layer boundaries in the velocity models. Velocity models are specified by a vector of velocities and a same-size vector of depths. The j th velocity is in effect from the j th to the j+1 th depth. The bottom of the model is assumed at infinite depth. Thus v=5000 and z=0 specifies a cons)

先用butter filter去除噪音，再找到信号峰，对峰描叙的条件可以自行调整(butter filtering, and peak finding)