| 快速响应红外探测器自适应降噪 |
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| 引用本文： | 胡旭,洪建堂,姬玉龙.快速响应红外探测器自适应降噪[J].红外与激光工程,2006,35(2):201-203. |
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| 作者姓名： | 胡旭 洪建堂 姬玉龙 |
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| 作者单位： | 重庆大学,通信工程学院,重庆,400044;昆明物理研究所,云南,昆明,650223;昆明物理研究所,云南,昆明,650223 |
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| 摘 要： | 为了在不降低快速响应热释电探测器响应速度的同时抑制器件的振动干扰,通过对快速响应热释电红外探测器的振动噪声机理和输出电信号的频谱分析,提出了数字降噪方案,并用基于FPGA的硬件电路来实现.文中还介绍了硬件的结构和FPGA代码实现,给出了降噪之后的实际效果.
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| 关 键 词： | 快速响应 热释电探测器 振动 降噪 数字化 |
| 文章编号： | 1007-2276(2006)02-0201-03 |
| 收稿时间： | 2005-06-14 |
| 修稿时间： | 2005-08-17 |
Fast-response IR detector digital noise restraining |
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| HU Xu,HONG Jian-tang,JI Yu-long.Fast-response IR detector digital noise restraining[J].Infrared and Laser Engineering,2006,35(2):201-203. |
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| Authors: | HU Xu HONG Jian-tang JI Yu-long |
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| Affiliation: | 1.College of Communication Engineering ,Chongqing University,Chongqing 400044 .China; 2,Kunming Institute of Physics,Kunming 650223, China |
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| Abstract: | In order to restrain the vibration noise while the reponse speed of fast-response pyroelectric detector is not depressed,the principles of vibration noise and the frequency spectrum of the output signal of fast-response pyroelectric detectors were analyzed.A digital method for noise restraining which is realized based on FPGA were presented. Hardware frames and the FPGA code were introduced.Finally, actual results after noise restraining were given. |
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| Keywords: | Fast-response Pyroelectric detector Vibration Noise restrain Digitalization |
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