transmitterwithsmallRANDOM

根据功率谱的原始定义编制的功率谱分析程序，相比于周期图、welch法等更简洁，但分辨率不高。(spectrum analysis based on self-correlation)

可以实现矩阵的奇异值分解，当矩阵较大时分解速度较慢，仅供研究矩阵奇异值分解的同仁参考。(This program can realize the singular value decomposition of a rectangular matrix. When the matrix size is large, the decomposition speed is slow. This program is just a reference for those who are interested in singular value decomposition of a matrix.)

contourlet toolbox component

该程序实现了产生n进制随机符号序列，符号数为len(The realization of the program to generate N binary random sequence of symbols, symbols for len)

it is a collection of matlab program. 1.to find the euclidian distance 2.to create mel frequency filter bank 3.

计算sigma-delta调制器输出码流的信噪比。(calculate the ratio of signal to noise of sigma-delta modulator.)

信道化接收发射机设计，很好用。供大家一起研究学习。(Channelized receiver transmitter design, easy to use. Research for everyone to learn.)

有源电力滤波器在产生指令电流时，基于瞬时无功功率的检测方法需要用到低通滤波器，本程序能够实现滑动滤波！(APF generating command current, based on instantaneous reactive power detection methods need to use a low-pass filter, the program can achieve sliding filter!)

An implementation of Unscented Kalman Filter for nonlinear state estimation. (Nonlinear state estimation is a challenge problem. The well-known Kalman Filter is only suitable for linear systems. The Extended Kalman Filter (EKF) has become a standarded formulation for nonlinear state estimation. However, it may cause significant error for highly nonlinear systems because of the propagation of uncertainty through the nonlinear system. The Unscented Kalman Filter (UKF) is a novel development in the field. The idea is to produce several sampling points (Sigma points) around the current state estimate based on its covariance. Then, propagating these points through the nonlinear map to get more accurate estimation of the mean and covariance of the mapping results. In this way, it avoids the need to calculate the Jacobian, hence incurs only the similar computation load as the EKF. For tutorial purpose, this code implements a simplified version of UKF formulation, where we assume both the process and measurement noises are additive to avoid augment of state and a)

使用matlab编程，图论最短路线的Ford迭代算法、Dijkstra算法和Floyd算法(Ford shortest graph theory iterative algorithm)