fft_li

这是关于功率谱的Matlab仿真程序，其中有AR、MA、ARMA三种模型的源代码，相关函数的源代码、功率谱的源代码等等。(This is on the power spectrum of the Matlab simulation program)

设计一个程序，用后向Euler 法/梯形法求解电路系统的MNA 方程（该方程由stamp 程 序得到），其中线性方程的求解采用GCR 迭代法。(Design a program that uses the backward Euler method/trapezoid method for solving circuit system MNA equation (the equation obtained by the stamp program), in which the linear equations using GCR iteration.)

Create a NamedNodeMap object from the attributes of the last child of the third "p" element and traverse the list from index 0 thru length -1.

机器人的全部目标是产生一个实验室的引导路线。实验室里的各种不同方向坐标已经存储，并且机器人在不同方向移动的非常成功。在某一方向，它可以给出该方向的位置。在不同方位的移动，机器人需要几个阶段，首先定位在某一位置，接着计算下一个方向的路程。(The overall goal of the robot is to conduct a guided tour of the laboratory. Coordinates of various stations in the room are stored, and the robot moves successively from station to station. At each station, it gives an explanation of that station. To move between stations, the robot make several steps, localizing itself at each step and recalculating the way to the next station)

直接序列扩频通信系统误码率的仿真分析PN码同步方法的比较与仿真(direct sequence spread spectrum communication system BER simulation analysis PN code synchronization method of comparison and Simulation)

杜芬系统跳跃现象 小参数 时间步长 以点或线画图可调(Duffing jumping phenomenon, the small parameter can be modulated and the time step can be set by yourself )

对井下放炮，地面接收地震资料进行偏移。长测线同样适用。(Underground blasting, ground receiving seismic data offset. Long lines are equally applicable.)

说明：  自编程实现fir滤波的低高带通和多带设计(Programming fir from low-high band-pass filtering and multi-band design)

模拟出一个雷达系统的匹配滤波器，并给出脉冲压缩的结果(Simulate a radar system, a matched filter, and gives the result of pulse compression)

Least Square Parameter Estmiation System Identification - Calculate expection value & variance of parameter estimators(teta_hat) ... for different random noise variance & different input signals - FUM university