beibaoPSO

this code is for PCA function, used to reduce the dimension

说明：  此程序包包含了霍夫变换的大部分主要程序，常用于抑制噪音等(This package contains the Hough transform most of the major procedure commonly used in noise suppression)

CR [1] is a promising solution to the problem of spectrum scarcity in wireless communications. The basic idea of CR is to allow secondary (unlicensed) users (SUs) to opportunistically utilize the spectrum of PUs (licensed), provided that the SU transmission do not harmfully affect the PUs. In this paper, we focus on the underlay CR approach, where the SUs access the spectrum occupied by the PUs, given that the interference they cause to the PUs is less than a certain threshold such that the Quality-of-Service (QoS) of the PUs can be ensured

the filter bank for music tone

MATLAB初级图形演示系统，用于进行十进制和十六进制的转换(MATLAB junior graphic presentation systems used for decimal and hexadecimal conversion)

干旱指数-标准化降水指数SPI计算的matlab程序。输入数据为各月的降水量(Drought Index- the standardized precipitation index SPI calculation matlab program. Input data for the month of precipitation)

This a code in matlab. Calculus the magic square of a size especific. This code is make with algoritms genetics.

理想单天线波束形成误码率 matlab仿真代码(Ideal single-bit error rate beamforming antenna code matlab simulation)

信源信号经过Jakes信道后的冲激响应仿真(Source signal Jakes channel impulse response after the simulation)

说明：  基于PSIM仿真软件，AC-DC变换，功率因数校正使用集成芯片UC3854进行仿真。(PSIM simulation software based, AC-DC conversion, power factor correction IC UC3854 using simulation.)