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Digital Communication Solutions Vol 4

针对数字卫星常用的 7 种通信信号调制方式(QPSK、8PSK、16QAM、32QAM、64QAM、16APSK、32APSK)，对零中心归一化瞬时幅度谱密度最大值、四次方谱、幅度、高阶累积量四种特征参数进行了分析，提出了一种联合特征参数的信号调制识别方法．(Aiming at seven communication signal modulation modes commonly used in digital satellite (QPSK, 8PSK, 16QAM, 32QAM, 64QAM, 16APSK and 32APSK), four characteristic parameters of zero-center normalized instantaneous amplitude spectral density, quadratic spectrum, amplitude and high-order cumulant are analyzed, and a signal modulation recognition method of joint characteristic parameters is proposed. Method.)

介绍了16PSK与16QAM调制的概念，分析了调制的频带利用率和误码性能仿真，总结了16QAM调制和16PSK调制的优缺点。(Introduction of 16QAM modulation 16PSK with the concept of analysis of modulation bandwidth efficiency and BER simulation, summed up the 16PSK modulation 16QAM modulation and the advantages and disadvantages.)

利用自回归模型产生Rayleigh率落信道(use of regression models have Rayleigh rate charged Channel)

MPLS简介,主要介绍了MPLS的基本原理(Description of MPLS)

说明：  Millimeter-wave Beamforming and Phased Arrays

matlab实现STBC的MIMO-OFDM的系统级仿真(Simulation of STBC MIMO-OFDM System with MATLAB)

说明：  无源被动雷达定位中的利用椭圆法求交点，得到目标位置(Passive Radar Detection using Range-Doppler Transformations find ell intersect)

CONVERT A MATRIX TO LOWER TRIANGULAR MATRIX

MFC写的2个程序，通过socket通信，上下位机的。上位机发送一个名字给下位机，下位机通过查询数据库取得电话号码传回上位机,带详细文档。(MFC write two procedures, through the socket communication, next-bit machine. PC to send a name to the next crew, the next crew by querying the database to obtain the phone numbers return PC)