AOS空间站数据系统关键技术研究

【作者】 范海礁；

【导师】 韦高；

【作者基本信息】 西北工业大学 ， 电磁场与微波技术， 2006， 硕士

【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。更多还原

【Abstract】 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.更多还原