摘要
主要阐述8GHz散射通信系统的设计思路和采用线性调频扩频信号以及分离多径接收的合理性。对线性调频信号的形式和特点进行了分析,给出了分离多径技术的设计和实现方法。并以实际工程为例,给出了实测的通信链路试验波形和试验结果,用以说明扩频、分离多径技术应用于8GHz散射通信中获得的显著效果。实践表明,该系统有很强的实用价值。
The design idea of the 8GHz troposcatter communication system is mainly elaborated and the rationality of linear FM spread spectrum signal and resolved multipath receiving technology are analyzed. By analyzing the linear FM signal and its characteristics, we present the design of resolved multipath techniques and the realization method. In a practical engineering, the factual communication link waveform and the experimental results are raised. It is concluded that the spread-spectrum and resolved mulfipath techniques have a remarkable effect in 8GHz troposcatter communications system. All the facts show that this system has great value in practice.
出处
《无线电通信技术》
2009年第2期50-51,共2页
Radio Communications Technology
关键词
散射通信
分离多径
匹配滤波
相关峰
隐分集
troposcatter communications
resolved multipath
matching filter
correlation peak
inherent diversity
