Design of transient light signal simulator based on FPGA

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	Design of transient light signal simulator based on FPGA
	Kang, Jing; Chen, Rong-Li; Wang, Hong
	2014
会议名称	International Symposium on Optoelectronic Technology and Application 2014: Optical Remote Sensing Technology and Applications, IPTA 2014
会议日期	2014-05-13
会议地点	Beijing, China
出版者	SPIE
会议主办者	China High-Tech Industrialization Association; Chinese Society of Astronautics (CSA)
产权排序	1
摘要	A design scheme of transient light signal simulator based on Field Programmable gate Array (FPGA) was proposed in this paper. Based on the characteristics of transient light signals and measured feature points of optical intensity signals, a fitted curve was created in MATLAB. And then the wave data was stored in a programmed memory chip AT29C1024 by using SUPERPRO programmer. The control logic was realized inside one EP3C16 FPGA chip. Data readout, data stream cache and a constant current buck regulator for powering high-brightness LEDs were all controlled by FPGA. A 12-Bit multiplying CMOS digital-to-analog converter (DAC) DAC7545 and an amplifier OPA277 were used to convert digital signals to voltage signals. A voltage-controlled current source constituted by a NPN transistor and an operational amplifier controlled LED array diming to achieve simulation of transient light signal. LM3405A, 1A Constant Current Buck Regulator for Powering LEDs, was used to simulate strong background signal in space. Experimental results showed that the scheme as a transient light signal simulator can satisfy the requests of the design stably.
作者部门	空间光学技术研究室
收录类别	CPCI（ISTP） ; EI
语种	英语
ISSN号	0277786X
文献类型	会议论文
条目标识符	http://ir.opt.ac.cn/handle/181661/22598
专题	空间光学技术研究室
推荐引用方式 GB/T 7714	Kang, Jing,Chen, Rong-Li,Wang, Hong. Design of transient light signal simulator based on FPGA[C]:SPIE,2014.

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