讨论了由SHARC处理器组成的雷达信号处理机的拓扑结构、数据传送方式和若干工程实际问题。首先对基Cluster、串行连接、并行连接三种拓扑结构的数据传送机理进行研究。分析了不同拓扑结构的优缺点,指出其设计要点。其次分析了LINK口传送的特点,数据长度的选取和数据流均匀性的调节。针对模块间link口通讯的信号完整性问题,研究其高速PCB设计中的要点,对数据传送中的出错问题,提出了SHARC处理器网络的一点和多点检测方案。

In this paper the topology and data communication of the radar signal processor based on the SHARC DSP are discussed.Some consideration in system design is also proposed.Firstly,researching the data communication mechanism of radar system based on topology of cluster,link in series,link abreast.The merits and deficiencies of these topologies are evaluated,Essentials of the design are developed.Secondly,the characteristic of link communcication,the length of data package and the evenness of data stream are investigated.Signal integrality of link communication between moldules is surveyed.The gist of the high speed PCB design is proposed.The project of one point monitoring and multi-point monitoring is presented to solve the miscode communication in SHARC network. [

TN959.72