本文简要介绍了在深空探测应用中广泛使用的Delta-DOR测量方法,讨论了深空探测系统中的Delta-DOR接收机的硬件设计和架构,其中涉及到混频器,PLL及FPGA的选型与设计,包括前端模拟部分设计,时钟系统设计和数字接收机部分的设计,着重探讨了数字接收机中的FPGA实现,包括使用FPGA完成数字下变频,FIR滤波等数字信号处理操作的介绍。最后探讨了目前深空探测用的宽带测量系统的发展现状。
【英文摘要】 The definition of Delta-DOR measuring method in deep space instrumentation is given,the hardware design and architecture of Delta-DOR receiver in deep space instrumentation system is emphatically explored,mixer design,PLL design and FPGA design are given in this paper.This paper introduces front-end,clock system,digital receiver design.Finally,the research situation of wideband system is put forward.
