摘要
讨论了基于FPGA的射电天文接收中解析信号处理下变频器的设计与实现,探讨了使系统获得灵活选取观测频点特性的方案,以及灵活变频系统在天文观测中的应用。
This paper describes a design of digital down converter system for analytical-signal processing in an astronomical radio receiver based on FPGA. Several schemes for obtaining the flexibility in frequency sampling are discussed. Furthermore, the application of the flexible frequency-sampling system in astronomical observation is discussed.
出处
《天文研究与技术》
CSCD
2009年第1期51-56,共6页
Astronomical Research & Technology
基金
国家重点基础研究发展计划(973)计划(2006CB806301)资助
