hecigongzhen

在现代谱估计中，用自相关的无偏估计代替周期图中自相关函数的有偏估计，可能导致出现负的谱估计值，因此采用BT谱估计器的方法(In the modern spectral estimation, the use of self-related unbiased estimate the figure to replace the cycle of auto-correlation function biased estimate may lead to a negative estimated value of the spectrum, so the use of BT s method of spectral estimation)

针对OFDM系统，分成链路级仿真和系统级仿真两个部分。为了降低系统级仿真的复杂度，采用链路级仿真的部分结果。(It contains mainly two parts, i.e. link-level simulator and system-level simulator. Link-level simulator focus on a single-cell single-user scenario, where signal is transmitted from tx, and estimated at rx. Comparing the difference in tx/rx signal, the error rate can be found out. The output of the link-level simulator is the BLER/BER vs. SNR mapping table, that can be used for the system-level simulation. System-level simulator focus on a multi-cell multi-user scenario. For the sake of simplicity, it takes the mapping table aquired in the link-level simulation, measure the actural SNR, and finds the corresponding error rate. Link-level simulator support SISO, 1 by x MRC, 2 by 1 STBC/SFBC, 2 by 2 Alamouti, x by 1 Antenna selection, x by y antenna selection. System-level simulator, currently support only SISO and 1 by 2 MRC. To start with, go into the folder sys_link_simu, and excute the following commond from matlab: sys_link_simu_func(a,b) where a is the link ada)

各种doa估计代码，包括均匀线阵，均匀圆阵等的估计。包含music，esprit，空间平滑等(Various doa estimation code, including ULA, uniform circular array of estimates. Including music, esprit, spatial smoothing)

VC6_0与MATLAB7_x混合编程方法研究(VC6_0 and MATLAB7_x mixed programming method)

matlab下可以直接使用的小程序 包括各种常用算法 对应书籍为《matlab宝典》(matlab can be directly used for small programs, including such popular books as the corresponding algorithm " matlab Collection" )

该程序可以产生一组雷达回波数据，并进行生成相应的一维距离像。(The program can generate a set of radar echo data, and generate the corresponding HRRP.)

It is a very useful matlab program to plot a 3D graph by using sfunction and it shows how to use multiplexur for x, y and z signals. Enjoy it and good luck.

ZFIT is a function which can PLOT, SIMULATE and FIT impedance data

for signal analysis and estimation methodes

分数傅立叶变换的源代码，可哟骂你过于图像处理，目标识别，信号检测等。尤其善于处理线性调频信号。(scores Fourier transform source code, you can yo scolded too image processing, target recognition, signal detection. Particularly good at handling linear FM signal.)