天波雷达信号传播模拟研究  

Research Simulation of OTHR Signal Propagation

作　　者：代林[1] 曾芳玲[1] 

机构地区：[1]解放军电子工程学院,合肥230037

出　　处：《火力与指挥控制》2013年第1期107-110,共4页Fire Control & Command Control

摘　　要：针对天波超视距雷达(OTHR)和短波通信系统均工作在高频段,分析了采用短波宽带信道模型模拟OTHR信道的可行性和有效性。研究了ITS宽带短波信道模型的建模方法,由于OTHR对信号误码率和误信率等要求低于通信系统,从而对ITS模型进行了合理的简化。由某实测数据获得信道的具体参数,对采用线性调频信号的OTHR进行了信号传播模拟,验证了传播模拟的合理性。According to Skywave over the horizon radar（OTHR） and shortwave communication,system is working at the same frequencies,The feasibility of communication channel model used in radar signal transmitting simulation is presented.Simulation of ITS wideband shortwave model is studied.As OTHR has lower demand on bit-error-rate than shortwave communication system,a simplified ITS model is discussed.Obtaining specific channel parameters from some measured data,the paper uses chirp signal to simulate the OTHR signal transmission.The rationality of the transmission simulation is proved by comparing simulation data and the original.

关 键 词：电离层 ITS 天波超视距雷达(OTHR) 群时延 

分 类 号：TN953[电子电信—信号与信息处理]