摘要
讨论了高动态、低信噪比、长伪码序列扩频信号的伪码的串行搜索的基本原理,以及自适应门限确定方法与搜索过程中应注意的问题;提出了一种基于高速数字信号处理技术(DSP)和现场可编程逻辑器件(FPGA)的全数字高动态解扩接收机方案;给出了系统的结构框图及程序流程图。
This paper discusses the theory of PN Code Serial Fast Acquisition of high dynamic low SNR and long PN code spread signals,the method of confirm the auto adaptive threshold and some important problems in acquisition process.In this paper , an all digital IF receivers implementation based on DSP and FPGA are proposed. System chart and program flow chart are presented.
出处
《军民两用技术与产品》
2005年第1期39-42,共4页
Dual Use Technologies & Products
