单脉冲和差波束法测角的matlab代码及支持函数

OPNET14.5的帮助文档，几乎所有的现行阶段的教材都是由该软件帮助文档改编或缩减而成，所以该文档为OPNET学习者必备手册之一。(OPNET14.5 the help of documents, almost all of the current phase of the teaching materials are adapted to the software help files or reduced form, so the document must have the manual for one of OPNET learners.)

利用改进型APSO算法可以明显抑制噪声 ，可以直接运行(The improved APSO algorithm can obviously suppress the noise and run directly.)

OFDM信道的参数估计模拟。QDPSK调制，采用训练信号。(OFDM channel estimation simulation.)

实现基于STBC的MIMO_OFDM通信系统在不同信噪比情况下接收端的误比特率的仿真。发射端包括基于基带调制、空时编码、导频插入、IFFT、串并合并以及添加循环前缀；接收端包括去除循环前缀、取出导频估计信道、FFT运算以及并串合并，空时解码等。仿真中采用QPSK、空时编码采用4*3的复正交空时编码矩阵。OFDM子载波数为100，每个子载波传输66个符号，每个符号2比特。IFFT长度为512个符号。发射天线为3个接收天线为2个。(The BER simulation of MIMO_OFDM communication system based on STBC under different SNR is realized. The transmitter includes baseband modulation, space-time coding, pilot insertion, IFFT, serial-parallel combination and adding cyclic prefix; the receiver includes removing cyclic prefix, extracting pilot estimation channel, FFT operation, parallel-serial combination, space-time decoding, etc. The complex orthogonal space-time coding matrix is used in QPSK and space time coding in 4*3. The number of OFDM subcarriers is 100, and each subcarrier transfers 66 symbols with 2 bits per symbol. IFFT is 512 symbols in length. The transmitting antenna is 3 receiving antennas, 2.)

用于描述通讯中常用的RS编码原理，以及MATLBA仿真实例(Used to describe communication RS coding theory, and simulation MATLBA instance)

对发射端功率进行分别配，使得系统吞吐量最大化(Distribute transmitter power to maximize system throughput)

OFDM及其基带FFT实现原理以及OFDM的载波和符号同步问题(and OFDM baseband FFT principle and the carrier OFDM symbols and Synchronization)

Winner+通信信道模型文件，视距通信概率，非视距通信概率，路损模型等(Winner+ communication channel model file, line of sight communication probability, the probability of non-line communication, road loss models)

一个OFDM在加性高斯白噪声信道(AWGN)和多径瑞利衰落信道(MuhipathReyleighFading)下的调制解调模型，simulink建模，仿真信噪比、频谱图、星座图。(A OFDM in additive white gaussian noise (AWGN) channel and multipath Rayleigh fading channel (MuhipathReyleighFading) of demodulation model, simulink modeling, simulation SNR, spectrum diagram, constellation chart. )

说明：  TCPIP在51单片机中的使用，一看就会，非常简单可靠实用(TCPIP )