| 一种数字视频信号噪声测试系统的外触发电路 |
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| 引用本文： | 柏连发,陈钱,张保民.一种数字视频信号噪声测试系统的外触发电路[J].南京理工大学学报(自然科学版),1993(4). |
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| 作者姓名： | 柏连发 陈钱 张保民 |
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| 作者单位： | 南京理工大学电子工程与光电技术学院
(柏连发，陈钱)，南京理工大学电子工程与光电技术学院(张保民) |
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| 摘 要： | 视频信噪比(SNR)是微光摄像机的一项重要的综合性指标,对它的测试与分析在评价和设计新型微光摄像机方面起着相当重要的作用。该文通过数字存储示波器与微机联合测试视频SNR,从而建立性能完善的微光摄像机信号噪声特性测试系统,并论述了数字存储示波器用于测试视频SNR时外触发电路的设计与制作过程。
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| 关 键 词： | 视频信噪比 数字存储示波器 触发电路 |
An External Trigger Circuit in the Digital Video Signal and Noise Test System |
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| Bai Lianfa School of Electronic Engineering and Optoelectronic Technology.An External Trigger Circuit in the Digital Video Signal and Noise Test System[J].Journal of Nanjing University of Science and Technology(Nature Science),1993(4). |
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| Authors: | Bai Lianfa School of Electronic Engineering and Optoelectronic Technology |
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| Institution: | Bai Lianfa School of Electronic Engineering and Optoelectronic Technology |
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| Abstract: | Video signal-to-noise ratio (SNR) is an important com-prehensive performance index of the Low Light Level (LLL) Camera.Test and analysis of SNR play a very important role in evaluating anddesigning new LLL Cameras. Video SNR is tested by using digitalstorage oscilloscope with computer, and a perfect LLL Camera signaland noise property test system is set up. This paper presents the de-signing and assembling process of the external trigger circuit of thedigital storage oscilloscope for testing video SNR. |
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| Keywords: | video signal-to-noise ratio (SNR) digital storage oscilloscope trigger circuit |
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