Digitalmodulation

实现通信抗干扰的跳频通信，希望对初学通信抗干扰的同志有所帮助(To achieve interference rejection for frequency hopping communication, hope to comrades beginner help communication interference)

1.) 1ST ORDER E FIELD OUTER RADIATION BOUNDARY CONDITION (ORBC) 2.) 2ND ORDER E FIELD OUTER RADIATION BOUNDARY CONDITION (ORBC) 3.) CAPABILITY TO SPECIFY DIRECTION AND POLARIZATION OF INCIDENT PLANE WAVE 4.) ERROR CHECKING FOR NTYPE AND IOBS, JOBS AND KOBS FOR NEAR ZONE FIELD SAMPLING IN SUBROUTINE DATSAV 5.) ERROR CHECKING OF IDONE, IDTWO AND IDTHRE VALUES

newton method for finding the minima of a function

说明：  老外的电机学教材，最为重要的是有相应的MAtlab代码，每一章都有，十分详细，学习电机的必备工具书，文件是在太大，此处上传chap3的源码(Foreigners motor learning materials, the most important thing is there is a corresponding MAtlab code, each chapter has a very detailed study of the motor necessary books, documents are too large to upload here chap3 source)

digstra algorithm for shortest paths

该程序为三级火箭发射弹道的主动段程序，经过三次点火达到目标轨道。(The program is for the three rocket launchers‘ active segment ballistic program, after three ignition, the rocket achieves the target track.)

PDE processes for Heat flux

说明：  matlab程序，混沌粒子群算法，混沌优化和粒子群优化两者的结合(Matlab program, chaotic particle swarm optimization)

直接序列扩频通信系统误码率分析,主要过程为基带信号生成，扩频，解扩，误码率分析(Direct sequence spread spectrum communication system BER analysis, the main process for the baseband signal generation, spreading, despreading, BER analysis)

卷积码编码以及8PSK调制解调程序，卷积码编码采用（7,5）生成多项式的（2,1,3）编码结构(Convolution coding and 8PSK modulation and demodulation process)