gold_code

Moving target detection and the principle of achieving matlab

this is command vectoriel de mas

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.

This function sort the current population based on non-domination

计算给定的传感器加速度信号的一阶香农熵，可改变信号分段数以改变熵值(calculate the signal s Shannon entropy)

compressive sensing theory

说明：  这是一个重要考验，支持模块，是由前两个模块使用的实用程序。(This is a utility program for significance test, a supporting module that is used by the previous two modules. )

根据灰色预测理论，用程序实现预测，效果较好(According to the gray prediction theory, use the program predicts better)

用来读取AIRS卫星二氧化碳数据，可以批量读取并且批量生成数据文件(Used to read the the AIRS satellite carbon dioxide data, bulk read and bulk data file is generated)

代码给出几种不同的信道模型对应的matlab仿真，代码精确无错，适合初学者自学(we have considered the general large-scale fading characteristics of wireless channels)