BD2接收机P码直接捕获设计  

A Method of P-code Direct Acquisition for BD2 Receiver

作　　者：朱学勇[1] 柴俊栓[1] 

机构地区：[1]中国空空导弹研究院,洛阳471009

出　　处：《科学技术与工程》2009年第17期4960-4964,共5页Science Technology and Engineering

摘　　要：P码直接捕获技术可提高BD2接收机的抗干扰能力和抗截获能力,是BD2军用接收机必须具备的功能。提出了基于匹配滤波和基于时域并行捕获两种P码直接捕获方法,并分别介绍了其工作原理和具体参数选择。通过计算两者的盲捕和重捕时间表明,两种实现方法均可以满足设计要求,可以实现对BD2长码的直接快速捕获。The technique of P-code direct acquisition can improve the anti-jamming and anti-capturing capabilities, which is indispensable for the BD2 military receiver. Two methods of P-code direct acquisition based on matehing filtering and time-domain parallel acquisition are presented, which includes the operation principle and parameters determination as well. According to the calculation of the ＂blind＂ acquisition and re-acquisition time, both methods satisfy the design requirements, which hence can accomplish long P-code direct acquisition of BD2 receiver.

关 键 词：BD2接收机 P码直接捕获 匹配滤波器 并行捕获 

分 类 号：TN96[电子电信—信号与信息处理] TN966.2[电子电信—信息与通信工程]