RF_matlab

This ia my circle and other programs. They compute the circle and ploit it in matlab.

MATLAB文件。《超宽带无线电基础》配套程序，第一章第二个例程。用于产生正弦脉冲。(MATLAB file. Ultra-wideband radio base matching program, chap second routine. Used to generate sine pulse.)

SAR成像的基本算法距离多普勒算法RDA,对初学者比较有帮助(SAR imaging（range doppler algorithm))

无线通信之MIMO系统的天线分集技术编程(The MIMO diversity programming system of the wireless communication)

带有速度限制和种群限制的粒子群优化算法程序。matlab编写。(Populations with speed limits and restrictions on particle swarm optimization algorithm. matlab prepared.)

通讯系统中2FSK调制方式实现的MATLAB代码示意图和眼图代码示意图(2FSK modulation communication system implemented schematic MATLAB code.)

共振解调法诊断轴承损伤类故障的原理概述如下:当轴承某一元件表面出现局部损伤时，在受载运行过程中要撞击与之相互作用的其它元件表面，产生冲击脉冲力，由于冲击脉冲力的频带很宽，必然包含轴承外圈、传感器甚至附加的谐振器等的固有频率而激起这个测振系统的高频固有振动。根据实际情况可以选择某一高频固有振动作为研究对象，通过中心频率等于该固有频率的带通滤波器把该固有振动分离出来。然后进行包络解调，去除高频衰减振动的频率成分，得到只包含故障特征信息的低频包络信号，对这一包络信号进行频谱分析便可以容易地诊断出轴承的故障来。(The principle of resonance demodulation method in the diagnosis of bearing damage such failure overview is as follows: when the bearing surface of a local damage, in the process of loading operation to hit with other elements of the interaction of surface, impact pulse power, due to the impact pulse frequency band is very wide, inevitably contains the bearing outer ring, sensors and even additional resonator and stir up the natural frequency of the vibration system of the high frequency vibration mode.A high frequency vibration mode can be selected according to actual situation as the research object, through the center frequency is equal to the natural frequency of the bandpass filter to separate the natural vibration.Then envelope demodulation, frequency components to remove the high frequency vibration attenuation, get only includes fault feature information of low frequency envelope signal, the envelope signal spectrum analysis can be easily diagnosed bearing failure.)

人脸识别算法实现 (Face Recognition Algorithm )

基于Harris原理的亚像素角点坐标检测Matlab程序；直接运行click_calib .m文件即可获得亚像素级角点坐标，附录Ⅱ中的其它函数文件均会被click_calib .m文件调用。(Based on the principle of subpixel Harris corner coordinates detection Matlab procedures run directly click_calib. M file to obtain sub-pixel corner coordinates, Appendix Ⅱ other functions in the file will be click_calib. M file called.)

dspace catlog for understanding