【摘要】 本文介绍了一种不仅可接收GPS的1575.42MHz载波信号,同时可以接收GPS的L2和L5、北斗B2和B3载波信号以及接收从高空气球转发业务数据的射频接收单元。该射频接收单元将在上海世博会期间接收由高空气球转发的世博信息,及进行业务数据的处理,本机实现一机双频多通道测量,覆盖面广,使用方便,特别适应用于精密定位测量,具有广泛的用途和十分重要的意义。更多还原

【Abstract】 This paper introduce a kind of RF receive unit that can not only receive GPS 1575.42MHz signal,but also receive GPS L2,L5,Beidou B2,B3 signal and some carrier coming from high-flying balloons.The RF receive unit will be used in Shanghai word EXPO to receive some business date that is transmitting from high-flying balloons.This machine is double-band and multi-frequency machine,It has a wide range of applications,especially suitable for measuring precision positioning.Using it is very convenient.更多还原