采用JFM7201的北斗基带数字接收通道设计  

Design of Beidou Baseband Digital Receive Channel Using JFM7201

作　　者：汪健[1] 张磊[1] 陈亚宁[1] 余向阳[1] 徐叔喜[1] 

机构地区：[1]北方通用电子集团微电子部,苏州215163

出　　处：《单片机与嵌入式系统应用》2014年第8期62-65,共4页Microcontrollers & Embedded Systems

摘　　要：北斗卫星导航定位系统是我国自行研制的,它采用直接序列扩频技术,只有当扩频码完全同步之后才能解调出信息码。因此,对于扩频码的捕获和跟踪就成为一个非常重要的环节,基带信号处理就可实现这样的功能。JFM7201芯片是一款基带信号处理芯片,与相关的处理器配合,可以实现信号的捕获、跟踪、解调以及输出位置、速度和时间的相关信息,是北斗接收机一种比较好的实现方式。Beidou satellite navigation and positioning system is developed by China. This system uses direct sequence spread spectrum technique. After full synchronization of the spreading codes, the system can demodulate the information symbols. Therefore, capturing and tracking of the spreading code become a very important part. The baseband signal processing can achieve the function. JFM7201 is a baseband signal processing chip. It can realize the capturing, tracking, demodulation, output position, velocity, time and other information. It is a good way for Beidou receiver.

关 键 词：北斗 基带信号 捕获 跟踪 导航定位 

分 类 号：TN965.5[电子电信—信号与信息处理]