Wireless_LAN_without_pilot

QPSK modulation system with recover loops(This is a model of a QPSK modulation system for transmission over a bandpass channel with fc = 100 Hz and B = 30 Hz and AWGN at the receiver. SRRC fi lters with excess bandwidth α = 0.18 are employed. The receiver includes an NDA timing recovery loop followed by a DD phase recovery loop. The transmitter?s symbol period is T and set to a value of 100 ms. The symbol period at the receiver is Tr. The model will produce six windows: Two constellation plots and two eye diagrams (for the real part only), at the output of the matched fi lters and after the recovery loops a plot of the phase error (output of the NCO) and a plot of the fractional timing error (used in the interpolator). The frequency off set at the receiver is denoted by deltaf. The model simulates the transmission of 8000 QPSK symbols.)

说明：  AR模型谱估计算法，对初涉AR模型谱估计的同学有很大的帮助，可以了解到其基本的模型构造和其谱估计的迭代步骤。(AR model spectrum estimation algorithm, the AR model spectrum estimation初涉students have a lot of help, it can be seen that the basic model structure and its spectral estimation iterative steps.)

朋友发给我的短时傅里叶变换程序，希望对大家有帮助(A friend sent me the short time Fourier transform process, we hope to help)

用MATCOM实现VC_对MATLAB中_m文件的调用(With MATCOM achieve VC_ on file in MATLAB call _m)

遗传算法解决最短路径。在matlab中实现计算和结果输出。(The genetic algorithm to solve the shortest path. Calculated and results output in matlab.)

matlab c++对接matlab c++对接(matlab c++)

一本matlab手册，在你忘记函数时，查询这个很好(matlab book)

人工蜂群算法Matlab工具箱，包含基本优化测试函数。(artificial bee colony algorithm, MATLAB)

该程序为微粒群算法与遗传算法求解pid参数整定MATLAB程序，优化结果包含参数输出与参数曲线变化图。(The program solves the PID parameter tuning MATLAB program for particle swarm optimization and genetic algorithm, and the optimization results include parameter output and parameter curve change diagram.)

说明：  matlab图形化一个矩阵，并对矩阵进行重新排序(matlab a graphical matrix, and reorder the matrix)