空间相机检测设备的高速信号传输技术  

High-speed signal transmission in the video test equipment for space camera

作　　者：唐晓庆[1] 邹炼[1] 田茂[1] 谢桂辉[1] 

机构地区：[1]武汉大学电子信息学院,湖北武汉430072

出　　处：《华中科技大学学报（自然科学版）》2015年第7期72-76,108,共6页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(61072135)

摘　　要：为了验证及评估空间相机检测设备的高速串行信号传输的可靠性,提出了对设备的高速信号链路进行建模及协同仿真的方法.首先建立了高速串行信号链路的混合模型,包括高速收发器通用模拟电路仿真器(HSPICE)模型、收发器晶片到封装焊球之间键合线的RLGC模型、仿真软件SIwave提取的印制电路板(PCB)布线的S参数模型和SATA连接器及其线缆的S参数模型.然后基于ADS仿真平台,通过频域的S参数仿真和时域的眼图仿真,分析了整个信号链路以及各互联结构对高速信号传输的影响.频域和时域仿真结果均表明该传输链路支持3.125Gbit/s的传输协议RapidIO最高传输速率,系统实际测试的误码率低于1×10-14.提出的建模与仿真方法也适用于其他各种高速串行传输系统.In order to verify and assess the reliability of high-speed serial signal transmission of space camera test equipment,a modeling and co-simulating method for high-speed signal link was proposed.Firstly,the mixed models of the high-speed serial link were established,including the high-speed transceiver simulation program with integrated circuit emphasis（HSPICE）model,the RLGC model of the bonding wire connecting the transceiver die with the solder bump,the scattering parameter model of printed circuit board（PCB）extracted by SIwave,serial ATA（SATA）connector model and SATA cable model.Then based on ADS simulation platform,the impacts of the signal link and each interconnection on the high-speed transmission were analyzed by the scattering parameter simulation in frequency domain and the eye diagram simulation in time domain.Both simulation results show that this transmission link supports the maximum data rate of RapidIO at 3.125Gbit/s,and the measured bit error rate is less than 1×10^-14.Besides,the proposed method in modeling and simulating is also suitable for all kinds of high-speed serial transmission systems.

关 键 词：空间相机 高速串行链路 信号完整性 建模 电磁仿真 S参数 眼图 

分 类 号：V447.3[航空宇航科学与技术—飞行器设计]