【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。更多还原

【Abstract】 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.更多还原