卫星导航系统中的Interplex复用技术研究Study of interplex multiplex technique in satellite navigation systems
孟繁智,黄仰博,欧钢
摘要(Abstract)：
GPS、GALILEO等卫星导航系统的一个共同发展趋势是在一个载波上同时广播多路测距信号,在众多的实现方案中,Interplex复用技术被选择用于复用3路测距信号。首先提出了易于卫星实现的3路信号Interplex复用结构,然后深入分析了复用效率和交调项对接收机的载噪比影响,最后以现代化GPS卫星Block IIR-M的L1信号复用为例,给出了定量分析结果。结果表明,将功率最高的测距信号和交调项调制到相同的载波相位上,可以获得最高的复用效率,交调项对接收机的载噪比影响可以忽略。分析结果同样适用于GALILEO等其他系统。
关键词(KeyWords)： Interplex;复用效率;载噪比;GPS
基金项目(Foundation):
作者(Author): 孟繁智,黄仰博,欧钢
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