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A multi-channel multiplexer simulator for satellite on Zynq SoC

机译:用于Zynq SoC上的卫星的多通道多路复用器模拟器

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Modern satellite payloads are generating a large amount of data with very high data rates that brings great challenges to the test and simulation of the multi-channel multiplexer on satellite. Moreover, the development duration of satellite multiplexer is long, so the test of satellite data transmission might be delayed. To solve these problems, a multi-channel multiplexer simulator is designed and implemented on Zynq SoC. The simulator is in the form of standard 3U PXIe module integrating TLK2711, LVDS and RS422 interfaces. The simulator receives the multi-channel, high-speed and dynamic payload data and sends framed data through two downlink physical channels. In order to improve the efficiency of data multiplexing, the simulator receives payload data that assigns a virtual channel (VC) for every channel data on the programmable logic (PL). Then, the virtual channel schedule unit uses a virtual channel scheduling algorithm based on the Consultative Committee for Space Data Systems (CCSDS) Advanced Orbiting Systems (AOS) protocol on the processing system (PS). The 600Mbps high rate frame multiplexer of CCSDS AOS protocol is verified on Zynq SoC in the Closed Loop Testing System. And, the simulator has been applied to a certain satellite ground automatic testing system.
机译:现代卫星有效载荷正在以非常高的数据速率生成大量数据,这给卫星上的多通道多路复用器的测试和仿真带来了巨大的挑战。此外,卫星多路复用器的开发时间长,因此卫星数据传输的测试可能会延迟。为了解决这些问题,在Zynq SoC上设计并实现了多通道多路复用器模拟器。该模拟器采用标准3U PXIe模块的形式,集成了TLK2711,LVDS和RS422接口。模拟器接收多通道,高速和动态有效载荷数据,并通过两个下行链路物理通道发送成帧的数据。为了提高数据多路复用的效率,模拟器接收有效载荷数据,该有效载荷数据为可编程逻辑(PL)上的每个通道数据分配了一个虚拟通道(VC)。然后,虚拟频道调度单元使用基于处理系统(PS)上的空间数据系统协商委员会(CCSDS)高级轨道系统(AOS)协议的虚拟频道调度算法。 CCSDS AOS协议的600Mbps高速率帧多路复用器已在闭环测试系统中的Zynq SoC上进行了验证。并且,该模拟器已被应用于某些卫星地面自动测试系统。

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