我编写的isodata 迭代自组织的数据分析测试源程序

高分辨率要求系统具有大的带宽，瞬时带宽的增加必将提高系统对硬件的要求，本文采用方便灵活的步进频率波形信号。脉间频率步进波形通过子脉冲载频的步进变化来获得大的有效带宽，使成像具有高分辨率，采用加窗和补零方法提高信噪比，但该信号对目标径向速度非常敏感。采用补零方法提高距离取样分辨率，使距离像细化，并用公式说明了补零只能提高距离取样分辨率，并不能改变频率步进信号的距离分辨能力。该信号波形对目标径向速度的敏感，使目标能量分散到邻近的距离单元造成距离分辨率下降，如果不事先进行速度补偿，直接对回波信号进行逆傅立叶变换，将使所成一维距离像发生频谱展宽，并伴有距离像发生平移。本文证明了当目标有径向速度时仍采用对回波信号直接进行逆傅立叶变换的方法将使一维距离像发生频谱展宽并伴有距离像发生频移，从而严重影响了一维距离像的质量。(high-resolution requirements of the system with large bandwidth, the increased instantaneous bandwidth will improve the system of hardware, In this paper, a flexible and convenient step frequency signals. Pulse frequency step-pulse waveform through the carrier frequency step to achieve great changes in the effective bandwidth. make imaging with high resolution, increasing the window and fill methods to improve signal-to-noise ratio is, However, the signal on the target radial velocity is very sensitive. Using zero-distance sampling method to improve resolution, so that distance as refinement, and formulates a zero-distance sampling can improve resolution, does not alter the frequency of the signal from stepping resolution capabilities. The signal waveform on the target radial velocity sens)

最小二乘的递推算法，包括完整的程序，希望对大家有帮助。(Least squares of recursion algorithm, including complete program, and we want to help. )

使用matlab分析传统光学系统中加入三次相位掩模板之后其点扩散函数的焦点偏移(Analysis using matlab conventional optical system by adding three phase mask after the point spread function of its shift in focus)

MIMO系统的几种检测方案，ZF，MMSE，ML译码，其中前两种可以运行，后者有些问题。代码均以调通(Several detection scheme for MIMO systems , ZF , MMSE, the ML decoding , the first two can run,there are some problems of the latter . all Code can run rightly )

这是lorenz系统的模糊建模，调用matlab模糊控制语句得以实现，不深韵其精髓是绝对编不错来的哦(This is the lorenz system, fuzzy modeling, fuzzy control statement calling matlab be achieved, not deep rhyme its essence is absolutely true to the oh series)

bp神经网络的应用，这个程序简单实用，大家可以通过调试参数体会一下(bp neural network applications, this procedure is simple and practical, we can taste through the debug parameters)

通过对心电信号提取，研究其RR间期，来判断病症(Extracted by ECG, RR interval study to determine disease)

说明：  最小树算法中的prim算法，本例是通用源码(Minimum spanning tree algorithm prim algorithm, in this case is a universal source)

matlab完美实现ICP（迭代最近点算法）算法，功能强大，适合匹配数据点(matlab perfect realization of ICP (iterative closest point algorithm) algorithm, a powerful, data points for matching)

快速FFT的算法,在做数字信号处理时，需要做频谱分析时需要用到的快速傅里叶变换的算法。(Fast FFT algorithm)