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改进的数字Costas环设计与实现 被引量:6

Design and Implementation of Improved Digital Costas Loop
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摘要 为解决传统Costas环在多路载波提取中占用资源量大以及在数字下变频中消耗现场可编程门阵列资源过多的问题,提出一种采用逻辑控制模块代替直接数字合成器模块的方法,设计并实现数字Costas环路。该方法适用于阵列雷达信号等多路载波信号处理,能够实现环路载波的快速提取,节约25%的硬件资源。 A new kind of Costas loop is designed with logistic modules instead of the primary Direct Digital Synthesizer(DDS) module in order to save logical resource in multi-carriers extraction and Direct Digital Control(DDC).The result of design shows that the proposed way is satisfactory for practical application and logical resource is saved by 25%.This new proposal is valuable to extraction of multi-carriers,especially in radar array signal processing.
出处 《计算机工程》 CAS CSCD 北大核心 2011年第17期230-232,共3页 Computer Engineering
基金 重庆市院士基金资助项目"多目标精密跟踪技术"(CSTC2008BC2001) 重庆大学"211工程"三期创新人才培养计划基金资助项目(S-09102)
关键词 COSTAS环 鉴相器 载波同步 锁相环 滤波器 Costas loop phase detector carrier synchronization phase locked loop filter
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