GUIHD

无约束一维极值优化问题，这里提供算法，供大家参考(Extreme unconstrained one-dimensional optimization problem, here algorithms for reference)

Z bus building algorithm

this program simulates 2D electromagnetic Maxwell equations , by using finite difference time domain method FDTD..and it simulates the perfect matched layer to prevent the reflections that may occure at the boundaries of the problem space

本程序仿真了AWGN信道下，采用DS扩频对bpsk信号的影响，扩频码采用walsh码，扩频因子16； 接收端进行rake接收，然后分集合并，比较了三种分集方式对误码率的影响 从图像可以看出在扩频因子较高的情况下，最大比值合并与等增益合并性能相近(This program simulates the AWGN channel, using DS spread spectrum signal for bpsk influence spreading code using walsh code spreading factor 16 Rake receiver receiving end, and diversity combining, diversity compares three methods on the bit error rate of As can be seen from the image in the case of higher spreading factor, the maximum ratio combining and equal gain combining similar performance)

基于matlab平台的完整的指纹匹配算法。(Complete fingerprint matching algorithm matlab platform.)

使用matlab计算多种气体的碰撞截面。(Calculate cross-section )

Questions for digital system and microprocessor

利用两段信号的相对差，对非整周期采用信号的频谱进行幅值和相位的校正。(The amplitude and phase of the signal spectrum are corrected by using the relative difference of the two segment signals.)

用matlab实现，求最短路径的弗洛伊德算法和Dijkstra算法，很有用(Floyd-Warshall algorithm Dijkstra s algorithm)

Spectrogram implementation in matlab environment