FDTD_reflection

地球不转时的星下点轨迹，回归周期1天，可自行设定(Earth does not rotate when the nadir track one day return period)

我们team开发的评估QPSK，16QAM，64QAM调制方式下的EVM指标的代码(evaluate EVM programmed by matlab)

说明：  基于PCA的matlab程序 实现数字的识别(The PCA-based digital identification matlab program)

新型pid控制算法,对传统的pid设计新手来说具有很强的借鉴意义.(new pid control algorithm, the pid of the traditional design rookie has a strong reference.)

软限幅效应,量化阶数及取样间隔对直扩数字匹配滤性能的影响 郭南1996 本文以典型的AID变换量化器和改进型抖动噪声量化器为倒t研究几个数字化参数对 直接序列扩频(DS／SS)数字匹配滤渡／相关性能(系统的处理增益和误比特率)的影响，给出理论分 析及计算机模拟结果 用最优化方法研究最佳软限幅问题；指出增加量化比特数与引入抖动噪声 相比能更有救地改善系统性能，而且只要采用三比特的量化就能使系统性能接近无穷量他的效 果．文中还讨论了取洋间隔以及噪声的归一化带宽对系统性能的影响。本文的结果可为台理设计 直扩数字匹配撼披器，相关器提供必要的理论依据。(Soft limiter effect of quantization and sampling intervals on the order of DS digital matched filter performance Guo South 1996 In this paper, a typical quantization AID transform quantization noise and improved jitter inverted t examine several parameters on the digital direct sequence spread frequency (DS/SS) digital matched filter crossing/relative performance (system processing gain and bit error rate) of given theoretical analysis and computer simulation results using optimization method of optimal soft limiter problem pointed out that the increase in quantization bits Number and introduce jitter noise can be more saved than to improve system performance, and as long as the three-bit quantization of the system performance can be substantially infinite amount of his effect. The paper also discusses the fetch interval and ocean noise normalized bandwidth impact on system performance. The results of this paper designed for station management shake Phi DS digital matched device, prov)

画图像的直方图，先通过统计的方法，得到统计块数，可自行定义横纵坐标(Draw image histogram, first by statistical methods, the statistics the number of blocks, you can define horizontal and vertical coordinates)

说明：  有关matlab最流行，最受欢迎的经典书籍。是matlab初学者必备书籍。(The matlab most popular, the most popular classics. Matlab beginners books is essential.)

MATLAB中时延差分方程的解法代码及规则和例程(Solutions of delay difference equations in the MATLAB code and rules and routine)

Maternal neonatal child health programme activities in matlab chandpur

Software defined radio simulation