星载遥感CCD相机高性能时序发生器的研制  

Development of High-performance Timing Generator for Remote Sensing CCD Camera on Satellite

作　　者：成桂梅[1] 吴淞波[1] 李强[1] 万旻[1] 包斌[1] 

机构地区：[1]北京空间机电研究所,北京100094

出　　处：《航天返回与遥感》2014年第1期46-53,共8页Spacecraft Recovery & Remote Sensing

摘　　要：文章介绍了星载遥感CCD相机高性能时序发生器的研制过程。根据TDICCD驱动时序信号的特点,采用先进的EDA工具(包括Libero IDE-Synplify Pro-Modersim等)对时序发生器进行了设计、综合、仿真。研究了反熔丝现场门阵列(Field Programmable Gate Aarray,FPGA)器件自身结构的特点,在自动布局布线的基础上采用人工干预的方法对局部寄存器和逻辑门进行了合理布局布线,优化输出I/O时序,使得驱动CCD的水平转移信号之间偏斜最小,并精确调整了水平转移信号的相位关系,从而提高了CCD模拟信号的精度,使时序发生器达到最佳性能,同时缩短了研制周期、降低了成本。This paper describes how to develop a high-performance timing generator for remote sensing CCD camera on satellite. According to the characteristics of TDICCD driving timing, the advanced EDA tools, which contain Libero IDE, Synplify Pro, Modelsim and so on, are used to design, synthesize and simulate the high-performance timing generator. By analyzing and studying the characteristics of anti-fuse FPGA chip, part of registers and logic cells are placed manually based on automatic layout＆amp;routing, which can make the driv-ing signals’ Clock-to-output delay time skew shorter and adjust the phase relationship accurately, and then the precision of analog signals is improved. Finally, a high-performance timing generator with shorter time and lower cost is achieved.

关 键 词：电荷耦合器件相机 时序发生器 现场可编程门阵列 布局布线 空间遥感 

分 类 号：V211[航空宇航科学与技术—航空宇航推进理论与工程]