摘要
在卫星扩频通信中,信号的捕获跟踪模块是整个基带处理SoC设计的核心。本文针对影响基带处理性能的窄带干扰和固定门限无法适应移动信号的快衰落变化这两个突出因素,提出解决方案,给出抑制窄带干扰自适应能量判决门限的滤波和双门限自适应调整PN码捕获的改进IP。采用SoC设计方法使IP快速融合到整个系统并实现了设计的可重用性,并结合ARM公司的Integrator/AP ASIC Development Board实现整个SoC基带处理器的协调工作,验证了设计的正确性和稳健性。
In the spread-spectrum satellite communications, the signal acquisition and tracking module has been the core of en- tire baseband processing system for SoC design. This paper aims at the influence of baseband processing performance with narrow- band interference and the fixed threshold can＇t adapt the state of motion signal quick decline, put forward the scheme that solves this two factors and gives the adaptive energy decision threshold filter for mitigation to narrowband interference and the double threshold adaptive decision PN code capture improvement IP. SoC design methods used to rapid integration into the IP system as a whole and to achieve the reusability of the design, combined with the ARM corporation＇s Integrator/AP ASIC development mother- board to achieve the coordination of SoC baseband processor, and has verified this design proposal accuracy and robustness.
出处
《电子技术应用》
北大核心
2008年第10期66-70,共5页
Application of Electronic Technique
关键词
SOC
窄带干扰抑制
双门限自适应
捕获跟踪
ARM
SoC
na_rrowband interference suppression
double threshold adaptive
acquisition and tracking
ARM
