| 焦平面图像红外无线传输系统中边沿位置调制的低功耗实现 |
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| 引用本文： | 郭磐,赵精龙,陈思颖,倪国强. 焦平面图像红外无线传输系统中边沿位置调制的低功耗实现[J]. 光学技术, 2008, 34(6) |
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| 作者姓名： | 郭磐 赵精龙 陈思颖 倪国强 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)，教育部长江学者和创新团队发展计划 |
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| 摘 要： | 在焦平面图像红外无线传输系统中,通过引入边沿位置调制(EPM)方式来代替传统的脉冲位置调制方式,提高了传输带宽效率。提出了基于反熔丝FPGA的EPM调制低功耗实现方案,包括输入接口、缓冲器与RLL(5,12)编码状态机的设计,以及数据恢复、脉冲提取等EPM解调关键技术的解决方案。实验系统利用EPM调制方式,在24MHz带宽条件下实现了320×240像素视频数据的低功耗红外无线实时传输,促进了焦平面图像红外无线输出的进一步实用化。
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| 关 键 词： | 红外无线通信 边沿位置调制 反熔丝FPGA |
Low power implementation of edge-position modulation in focal plane image wireless infrared transmitting system |
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| GUO Pan,ZHAO Jing-long,CHEN Si-ying,NI Guo-qiang. Low power implementation of edge-position modulation in focal plane image wireless infrared transmitting system[J]. Optical Technique, 2008, 34(6) |
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| Authors: | GUO Pan ZHAO Jing-long CHEN Si-ying NI Guo-qiang |
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| Abstract: | Edge-position modulation(EPM)scheme is introduced into focal plane image wireless infrared transmitting sys- tem as a substitute of traditional pulse-position modulation schemes to improve the bandwidth efficiency.A low power solution of EPM implemented by anti-fuse FPGA is proposed,which includes the design of input interface,buffer and rurdength-limited(5, 12) (RLL)eneoder state machine.The solutions of data recovery,pulse shrink and other Edge-position demodulation key tech- niques are proposed also.Using EPM scheme,the experiment system achieves the low power real time video data transmission of 320×240 pixels with the cbarmel bandwidth of 24MHz.The application of wireless infrared export for focal plane imagebecomes more practical. |
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| Keywords: | wireless infrared communication edge-position modulation anti-fuse FPGA |
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