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This paper introduces an access to Low Level Light(LLL) environment simulation. A hardware designed in this way has a integrated camera bellows and a programmable LLL source. The radiant spectrum of light can be adjusted by programe to simulate the night environment. It provides a convenient way to test the performance of night vision equipments.
This paper expatiated on the basic method for circuit fault diagnosis with NNs, then introduced the characteristics of volterra series and applied it on circuit fault feature extraction. The scheme with both NNs and volterra series technique had a good resolving power on fault diagnosis according to practice. It was fitting for engineering applying.
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