為了解決空間目標與航天器發(fā)生碰撞的問題，設(shè)計了一種基于FPGA，以在軌目標三維坐標為待處理數(shù)據(jù)進行快速并行處理的目標碰撞預(yù)警系統(tǒng)。該系統(tǒng)基于Xilinx 公司FPGA芯片中的內(nèi)容可尋址存儲器（Content Addressable Memory，CAM） IP核和MicroBlaze軟核控制器，利用嵌入式開發(fā)套件（EDK）進行搭建；并設(shè)計了空間危險目標的篩選算法，同時編寫了軟件及硬件代碼，加載到以上系統(tǒng)中進行實際的操作驗證。驗證結(jié)果表明，該系統(tǒng)實現(xiàn)了16個目標中危險目標的快速篩選功能，通過使用ChipScope邏輯分析工具進行波形分析，可知系統(tǒng)執(zhí)行一次篩選操作所需時間為1.8 s。

Abstract:

?To solve the problem of the collision between the targets and the spacecraft， a space targets collision warning system was designed based on FPGA， and the data which are the three-dimensional coordinates of the targets can be deal parallel in the system. The system was built on the CAM IP core and MicroBlaze soft core controller in Xilinx FPGA under the environment of the Embedded Development Kit（EDK）. At the same time， an algorithm of sifting dangerous targets was designed， and software and hardware codes were compiled. After being verified in the system ， the result proves that the system realizes the function of fast sifting dangerous targets from 16 targets. After analysing with ChipScope，it shows that the time period to operate a complete sifting is 1.8s.

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