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无线应用技术包括全球定位系统(GPS)等已经获得了巨大的发展,利用GPS技术进行导航定位,无论是在军用或民用领域,都有着广泛而重要的应用价值。而在整个无线应用系统中射频电路的设计起到了举足轻重的作用。本文在概述了现有GPS接收机的基础上,讨论了一种应用于车载系统的GPS接收机的前端部分设计,并重点对其中的射频电路进行了设计与分析。
Wireless application technologies, including the Global Positioning System (GPS), have gained tremendous growth. The use of GPS technology for navigation and positioning has broad and important application value both in military and civilian fields. In the entire wireless application system design of radio frequency circuit plays a decisive role. Based on an overview of the existing GPS receivers, this paper discusses the design of the front-end of a GPS receiver used in vehicle-mounted systems and focuses on the design and analysis of the RF circuits.