采用伪随机码扩频信号的陆基无线电导航系统  

Onshore Radio Navigation System Adopting Pseudo Random Noise Spread-spectrum Signal

作　　者：姜弢[1] 刘庆普[1] 岳欣 

机构地区：[1]哈尔滨工程大学信息与通信工程学院,黑龙江哈尔滨150001

出　　处：《哈尔滨工程大学学报》2002年第6期70-72,88,共4页Journal of Harbin Engineering University

摘　　要：讨论了在开发和应用卫星导航系统的同时,大力发展陆基无线电导航系统的重要性.为实现海上舰船的远距离、高精度被动定位,必须正确选择工作频率.探讨了几个典型距离上的工作频率与海上电波传播衰减特性以及与大气噪声特性的关系,明确了应用伪随机码扩频技术是提高目前广泛使用的Loran C无线电导航系统性能的有效技术途径之一.The importance of developing radio navigation system with great effort is presented when satellite navigation systems are being developed and applied. The frequency of operation should be chosen carefully for realizing the remote and high precision passive location of ship offshore.The relationship between working frequency and characteristics of propagating attenuation offshore and atmospheric radio noise at some typical distances are discussed. A declaration is made that pseudo random spread spectrum technique is one of the effective technical measures to improve the widely used LoranC navigation system .

关 键 词：无线电导航 LORAN-C 扩展频谱 被动定位 

分 类 号：TN911[电子电信—通信与信息系统]