对红外焦平面阵列CMOS读出电路中几种常见的噪声及其抑制技术进行了分析和讨论,重点研究了消除读出电路噪声的新方法———双复位法。该方法克服了以往相关双取样的缺点,没有增加电路功耗和硅集成电路的复杂程度,只要电容参数选择合理,理论上能完全消除KTC噪声,而且对1/f噪声也起到抑制作用。 This paper analyzes and discusses several common noise and suppression techniques in CMOS readout circuit of infrared focal plane array, and focuses on the double reset method, which is a new method to eliminate the noise of readout circuit. This method overcomes the shortcomings of previous related double sampling, does not increase circuit power consumption and silicon integrated circuit complexity, as long as the reasonable choice of capacitance parameters, in theory, completely eliminate the KTC noise, but also play a role in inhibiting the 1 / f noise.