qr_rls

改程序实现QPSK系统的性能仿真，仿真与理论相符，供大家参考。(QPSK System Simulation, Pe evaluation)

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.)

ECG on mathematical test taken on 250 Hz (sampling frequency) You can use in order to obtain (and compare) the stress (from HRV)

this is windows trayicon sample code.

一个简单的，低成本的装置的设计优化 对均匀光纤布拉格光栅的布拉格波长 光栅（FBG）。调谐范围是通过 为45.34 nm的基于一个原则 在强度均匀矩形梁 模拟。 (A simple, low cost setup was designed for tuning the Bragg wavelength for a uniform fiber Bragg grating (FBG). The tuning range was achieved by as much as 45.34 nm based on the principle of a rectangular beam of uniform strength in the simulation.)

基于内容的图像检索程序 实现图像的检索 图像处理 图像特征提取 图像检索 (Content-based image retrieval to extract image retrieval program for image retrieval of image processing image features)

这个程序详细说明了怎么用极坐标画天线方向图(This procedure specifies how to use the antenna pattern in polar coordinates Videos)

this is a matlab code for turbo encoder in lte system

pso particle Swarm optimization

说明：  matlab 决策树 简单 cart算法(Matlab decision tree simple cart algorithm)