红外技术2017，Vol.39Issue(8)：704-709,6.
320×256中波红外焦平面器件低噪声采集系统设计
Acquisition System with Low Noise Based on 320×256 Medium Wavelength Infrared FPA
李锋 1董峰 2冯旗3
作者信息
- 1. 中国科学院大学,北京 100049
- 2. 中国科学院上海技术物理研究所,上海 200083
- 3. 中国科学院红外探测与成像技术重点实验室,上海 200083
- 折叠
摘要
Abstract
This paper provides a description of the signal processing design procedure for an acquisition system with low noise, using the internal circuit structure characteristics and output analog signal characteristics of a 320×256 medium wavelength infrared FPA. A medium wavelength infrared FPA image data acquisition system consists of a power supply module, drive circuit, A/D conversion circuit, data processing circuit, and sequential control module. Through noise tests and imaging experiments, the circuit's noise is found to be approximately 0.1mV and the system's noise is approximately 1.5mV at 26℃(room temperature). A pixel's signal-to-noise ratio (SNR) is between 62dB and 65dB. The results show that the system has good noise characteristics and that it can meet the requirements of practical engineering applications.关键词
320×256焦平面/中波红外/低噪声/采集系统Key words
320×256 FPA/medium wavelength infrared/low noise/acquisition system分类
信息技术与安全科学引用本文复制引用
李锋,董峰,冯旗..320×256中波红外焦平面器件低噪声采集系统设计[J].红外技术,2017,39(8):704-709,6.
