Large signal analysis of the infrared semiconductor mercury-cadmium-telluride detectors

被引:1
|
作者
Abuelma'atti, Muhammad Taher [1 ]
机构
[1] King Fahd Univ Petr & Minerals, Dhahran 31261, Saudi Arabia
关键词
infrared spectroscopy; mercury-cadmium-telluride detector; intermodulation distortion; harmonic distortion;
D O I
10.1007/s10762-007-9267-z
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A mathematical model for the relationship between the output voltage and incident radiation of the infrared semiconductor mercury-cadmium-telluride (MCT) detector is presented. The model, basically a sine-series function, can easily yield closed-form expressions for the harmonic and intermodulation performance of the MCT detector with large-amplitude multisinusoidal incident radiation. The special case of two-tone equal-amplitude incident radiation is considered in detail. The results show that the second-order harmonic and intermodulation products are always higher than the third-order components. Moreover, the results show that the second-order intermodulation is always dominant.
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页码:849 / 858
页数:10
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