红外光学遥感器的杂散辐射源分为外部辐射源和内部辐射源，其杂散光分析与抑制原理均与可见光谱段的遥感器有较大差别。在红外光学遥感器杂散光抑制设计中，外杂散光和内杂散光的抑制措施通常相互矛盾，但又必须采取最优措施以达到对二者同时抑制的效果。通过研究同一抑制措施在不同状态时外杂散光和内杂散光的变化趋势，提出红外光学遥感器杂散辐射的综合抑制思想。对某红外预警相机的杂散辐射进行了实例分析，通过研究抑制措施输入值改变时内杂散光和外杂散光的变化趋势，并分析关键表面的特性，最终找出抑制措施的最优输入，分析结果满足内杂散光和外杂散光的综合抑制要求。

The stray light of the infrared sensor consists of external stray radiation and internal stray light. The simulation analysis and suppressions of the stray light of the infrared optical remote sensor are very different from the remote sensors working in visible wavelength. The suppression of the internal and external stray light are usually contrary. However, the optimizing measures should be applied for the suppression of the external and internal stray light together. The conception of integrative suppression of the external stray light and internal stray light is introduced by studying the changing trend of the internal and external stray light for the same measure in different stes. In an example about the suppression of the stray radiation in an infrared warning camera, the characteristic of the key surface is analyzed and the best measure is adopted by the conception of the integrative suppression. The analysis results can satisfy the requirement of the system.