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红外探测器信息获取系统噪声特性

Keywords: 信息获取 噪声模型 噪声测试 红外 航天应用

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Abstract:

理论上完成了红外图像传感器信息获取电路的噪声建模, 并且分别从仿真和测试两个方面对电路的噪声进行分析.三种分析方法的结果基本相同, 均为0.11mV左右.从原理和实验两个方面证明了基于仪放的模拟信号调理电路可以满足噪声低至0.2mV的红外探测器航天应用需求.在完成噪声量大小分析的同时进行了噪声频谱特性分析, 证明了信息获取电路噪声主要成分是1/f噪声和白噪声, 二者均满足高斯分布

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