摘要
从低噪声角度出发,设计了基于640×480的高信噪比非制冷红外采集系统。对精密偏置电压、信号滤波以及高速模数转换提供了详细设计思路和实现方法。测试结果表明本系统在积分时间为64μs的情况下,取得了像元平均NETD值为223 m K的优良信噪比特性。
On the principle of low noise characteristic, a high SNR acquisition system was designed based on a 640× 480 uncooled infrared sensor. The paper gives a detailed description and realization of precise bias voltages, signal filtering and high speed A/D conversion. The test result showed that the system had achieved an excellent SNR characteristic with average NETD value of 223 mK.
出处
《红外技术》
CSCD
北大核心
2016年第5期374-377,共4页
Infrared Technology
关键词
非制冷
红外传感器
低噪声
采集系统
uncooled, infrared sensor, low noise, acquisition system
