rayleigh-channel-QPSK

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.)

高品質積分 Runge Kutta 如有需要仍有更精細版本可供參考(Runge Kutta)

说明：  各种神经网络设计的源码，通过MATLAB验证 (The source of various neural network design, verification by MATLAB)

说明：  讲述雷达测距原理，组成元件，性能指标，发展趋势(About radar ranging principle, components, performance index)

针对极化阵列的波束综合问题，并把这一问题描述成一个凸优化问题。 (For polarization array pattern synthesis problem, and describe it as a convex optimization problem.)

In such situations, the performance of Monte Carlo simula- tions may be better: they are faster and there are no limitations for the number of components in simultaneous outages.

具有特色的地震数据处理源码，由matlab语言编写，可用于各个版本的matlab(characteristics of the seismic data processing source code from Matlab language, can be used for all versions of Matlab)

buck boost varaible voltage by state space equations

MATCOM 使用教程 MATCOM可以把MATLAB转换成C语言(MATCOM use the tutorial MATCOM can put MATLAB into C language)

对心电信号进行EMD分解，比较EMD、EEMD、CEEMD、CEEMDAN的分解差别(Emd for ecg signal decomposition, comparing emd, eemd, ceemd, ceemdan decomposition differential)