polardb

MATLAB7混合图像编程。详细介绍了MATLAB7.x与其它语言混合变成的方法。是程序开发更加高效，灵活(Graphics Programming MATLAB7 mixed. Described in detail MATLAB7.x become mixed with other language approach. Development is more efficient, flexible)

基于边界元与有限元耦合的地震动模拟程序。能简单有效的解决地震作用下地表位移反应问题(Based on boundary element and finite element coupled to ground motion simulation program. Can be simple and effective solution surface displacement response under earthquake problem)

GprMax的理论基础是时域有限差分(FDTD)方法。时域有限差分方法直接将Maxwell方程作差分离散，利用二阶精度的中心差分近似把Maxwell方程中的微分算符直接转换为差分形式，在空间和时间上对电场和磁场交替间隔取样，使计算过程完全模拟电磁波逐步传播以及与目标物体相互作用的过程。(GprMax is based on the theory of the finite difference time domain (FDTD) method. The finite difference time domain method directly will Maxwell equation of discrete difference, using second order precision of the central difference in the equations are Maxwell approximate differential operator directly convert difference forms, in the space and time of electric field and magnetic field on alternate sampling interval, making the calculation process simulation electromagnetic wave propagation and completely step by step and target object interaction process. )

说明：  这是一个简单的萤火虫算法源代码，在几个基准函数示例下能够收敛并且能找到最优解。(This is a simple firefly algorithm source code, in a few benchmark function examples can converge and find the optimal solution.)

DS_SS的matlab仿真及抗干扰性能分析,很详细(DS_SS of matlab simulation and anti-jamming performance analysis, in great detail)

经典BP网络算法，标注清晰，保证看了几遍就会(Classic BP network algorithm, clear annotation)

gps卫星中利用精密星历文件提供的钟差信息没差出任意时刻的钟差值(gps satellite ephemeris file using precision clock error information provided at any time without deviation from the clock difference)

基于matlab的bpsk的调制 随机信号和载波可根据需要改动(Based on the bpsk matlab modulation random signals and carrier may need to change)

求一个输入数组的最大值，并返回其值。配合C的dsp实现(Seeking a maximum input array and returns its value. With C dsp implementation)

高斯信道、莱斯信道和瑞利信道的误码率分析(Gaussian channel, Rice channel and Rayleigh channel the analysis of BER )