AOS空间站数据系统关键技术研究
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摘要
本文研究了AOS空间站数据系统关键技术——高速链路控制器、信道合路器/分路器的设计和实现方法,系统以Stratix FPGA芯片为核心,采用LVDS作为高速数据传输的接口标准,将高速链路控制器、信道合路器/分路器集成在一片FPGA芯片上,为了实现对多路、动态、异步数据的传输,提高物理信道利用率,对虚拟信道进行动态优先机制的调度和多路复用,系统可以对十路(其中一路为320Mbps的高速)不同信源和码速率的链路控制器数据进行合路和分路,使多路动态数据可以通过一个物理信道高效率、高质量的传输,并在此基础上研制了高速链路控制器、信道合路器/分路器的原理样机。对样机的实验结果显示,高速链路控制器可以完成320Mps高速数据的位流处理业务;信道合路器/分路器能对十路动态数据实现可靠的合路和分路,数据率达到480Mps;对高码速率下的AOS关键技术进行验证,证明其技术设计正确,并具有工程实现的可行性;为AOS在空间站数据系统型号研制中的应用提出了高速链路控制器、信道合路器/分路器的可行的设计方法。
This paper studies the design and implement method of high-speed link controller and channel multiplexer/demultiplexer which are key technologies of the data system for AOS space station. Stratix FPGA is used as the core component of the system, and the system uses LVDS as the interface standard of the high speed data transmission, high-speed link controller and channel multiplexer/demultiplexer are integrated in a FPGA chip. In order to transmit the multi-path dynamic asynchronous data and increase the utilization ratio of the physical channel, the virtual channel is deployed and multiplexed with dynamic priority system. The data with different rate from 10 path different link controller can be multiplexed and demultiplexed, and one of them is high bit rate (320Mbps). Multi-path dynamic data can be transmitted with high-efficient and high-quality through one physical channel, and a principle model machine of the high-speed link controller and channel multiplexer/demultiplexer is also designed. The experiment results of the model machine indicate that the high-speed link controller can achieve the bit stream service for the data with speed of 320Mbps. Ten path dynamic data can be reliably multiplexed and demultiplexed by multiplexer and demultiplexer, and its data rate is up to 480Mbps. Demonstration the high bit rate AOS and its key technologies, as well as the verification of the scheme design and its availability. The research raises an available design method of high-speed link controller and multiplexer/demultiplexer for the application of AOS in the space station data system research.
This paper studies the design and implement method of high-speed link controller and channel multiplexer/demultiplexer which are key technologies of the data system for AOS space station. Stratix FPGA is used as the core component of the system, and the system uses LVDS as the interface standard of the high speed data transmission, high-speed link controller and channel multiplexer/demultiplexer are integrated in a FPGA chip. In order to transmit the multi-path dynamic asynchronous data and increase the utilization ratio of the physical channel, the virtual channel is deployed and multiplexed with dynamic priority system. The data with different rate from 10 path different link controller can be multiplexed and demultiplexed, and one of them is high bit rate (320Mbps). Multi-path dynamic data can be transmitted with high-efficient and high-quality through one physical channel, and a principle model machine of the high-speed link controller and channel multiplexer/demultiplexer is also designed. The experiment results of the model machine indicate that the high-speed link controller can achieve the bit stream service for the data with speed of 320Mbps. Ten path dynamic data can be reliably multiplexed and demultiplexed by multiplexer and demultiplexer, and its data rate is up to 480Mbps. Demonstration the high bit rate AOS and its key technologies, as well as the verification of the scheme design and its availability. The research raises an available design method of high-speed link controller and multiplexer/demultiplexer for the application of AOS in the space station data system research.
引文
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[22] 郑波、张伟、陈泓,空间数传链路中虚拟信道动态管理的研究,空间电子技术,1999年第3期
[23] 毛继志、李建周、许家栋,基于FPGA和LVDS的AOS高速合路器/分路器研究,计算机工程与应用,2005年第30期
[24] 赵衍,AOS空间实验室通信仿真系统的设计与实现,西北工业大学硕士论文,2002年3月
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[26] 西北工业大学,空间实验室高级在轨系统(AOS)关键技术研究及演示验证研究报告,2004.12
[27] 西北工业大学,高级在轨系统(AOS)关键技术的实验研究,2005.10
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[33] 杨刚、龙海燕,现代电子技术——VHDL语数字系统设计,电子工业出版社,2004.4
[34] Stefan Sjoholm、Lennart Lindh著,边计年、薛宏熙译,用VHDL设计电子线路,清华大学出版社,2000.8
[2] 黄薇、张纪生,CCSDS AOS建议介绍,飞行测控学报,2002年9月
[3] 于志坚、房鸿瑞,在我国实施CCSDS标准的基本构想,遥测遥控,1999年06期
[4] 张炜、王莹、张尔扬,基于CCSDS高级在轨系统的遥科学空间通信链路结构研究,宇航学报,1999年3月
[5] 崔隆、张尔扬,CCSDS高级在轨系统复接业务性能的分析,宇航学报,1997年7月
[6] 姜昌,分包遥测、遥控与AOS设计思想初探[J],飞行器测控技术,1996(3)
[7] 孙白波,加强对CCSDS标准的认识与研究[J],遥测遥控,1999.20(4)
[8] 魏凌,CCSDS-AOS建议的研究[J],无线电通信技术,2004.30(5)
[9] CCSDS 700.0-G-3: Advanced Orbiting Systems, Networks and Data Links: Summary of Concept, Rationale and Performance, November 1992
[10] CCSDS 701. 0-B-3: Advanced Orbiting Systems, Networks and Data Links: Architectural Specification, November 1992
[11] CCSDS 704. 1-G-3: Advanced Orbiting Systems, Networks and Data Links: Audio, Video and Still-lmage Communications Services, May 1994
[12] CCSDS-713. 0-B-1: Space Communications Protocol Specification (SCPS) -Network Protocol (SCPS-NP)[S] , 1999.5
[13] CCSDS-713. 5-B-1: Space Communications Protocol Specification (SCPS)-Security Protocol (SCPS-SP)[S] , 1999.5
[14] CCSDS-714. 0-B-1: Space Communications Protocol Specification (SCPS)-Transport Protocol (SCPS-TP)[S] , 1999.5
[15] CCSDS-717. 0-B-1: Space Communications Protocol Specification (SCPS)-File Protocol (SCPS-FP)[S] , 1999.5
[16] CCSDS-727. 0-B-2: CCSDS File Delivery Protocol (CFDP)[S] , 2002.10
[17] CCSDS-732. 0-B-1: AOS Space Data Link Protocol[S] , 2003.9
[18] CCSDS-910. 7-R-1: Space Link Extension-Service Management-Space Link Physical Layer Managed Object Specification[S] , 2001.10
[19] 张健、吴晓冰,LVDS技术原理和设计简介,电子技术应用,2000年第五期
[20] 王冰、靳学明,LVDS技术及其在多信道高速数据传输中的应用,电子技术应用,2003年第三期
[21] 司朝良,LVDS接口电路及设计,今日电子,2003年第一期
[22] 郑波、张伟、陈泓,空间数传链路中虚拟信道动态管理的研究,空间电子技术,1999年第3期
[23] 毛继志、李建周、许家栋,基于FPGA和LVDS的AOS高速合路器/分路器研究,计算机工程与应用,2005年第30期
[24] 赵衍,AOS空间实验室通信仿真系统的设计与实现,西北工业大学硕士论文,2002年3月
[25] 王迎,AOS空间实验室通信仿真系统的研究与实现,西北工业大学硕士论文,2003年3月
[26] 西北工业大学,空间实验室高级在轨系统(AOS)关键技术研究及演示验证研究报告,2004.12
[27] 西北工业大学,高级在轨系统(AOS)关键技术的实验研究,2005.10
[28] Altera, Component Selector Guide, Altera Corporation, 2004.1
[29] Altera, Stratix Device Handbook, Altera Corporation, 2003.7
[30] Altera, Configuration Handbook, Altera Corporation, 2004.7
[31] Altera, ByteBlaster II Download Cable User Guide, Altera Corporation, 2004.12
[32] 褚振勇、翁木云,FPGA设计及应用,西安电子科技大学出版社,2002.7
[33] 杨刚、龙海燕,现代电子技术——VHDL语数字系统设计,电子工业出版社,2004.4
[34] Stefan Sjoholm、Lennart Lindh著,边计年、薛宏熙译,用VHDL设计电子线路,清华大学出版社,2000.8