分布式航天器间距离测量信号处理机的设计

Design of Distributed Spacecraft System Autonomous Relative Ranging Signal Processor

根据分布式航天器小型化要求，采用大容量可编程门阵列（field programmable gate array，FPGA）和数字信号处理器（DSP）设计了一种分布式航天器间距离测量信号处理机，处理机可以对航天器间的相对距离进行高精度测量，实现航天器自主距离解算；根据距离测量对处理机的设计要求，从硬件结构和软件模块设计上讨论了处理机的设计思想和方法；最后在处理机上进行了航天器间相对距离测量模拟试验，证明了处理机的宽带信号处理能力。

According to miniaturization requirement of distributed spacecraft, a distributed space-craft relative ranging processor is designed using high capacity field programmable gate array （FPGA） and digital signal processing（DSP）. The ranging processor can high precisely accomplish relative distance measurement and realize calculation of autonomous relative ranging between spacecrafts. According to design requirement of distance measurement, design scheme and technique of processor is discussed based on hardware structure and software module. Finally simulation of distributed space-craft relative ranging is applied on processor, and simulation result proved processor having wideband processing capacity.