本文分析了红外干涉成像现状和难点，介绍了激光本振红外相干探测的原理，阐述了基于电子学的红外光谱细分和干涉成像原理，讨论了激光本振红外阵列探测器形式。激光本振和相干探测器的设置，可保证两个望远镜的红外信号相位的正确传递，在电子学实施窄带滤波形成的窄带红外信号有利于实现长基线干涉成像。在此基础上，类似微波综合孔径射电望远镜，通过不同空间位置的多个较小孔径，组合形成一个大的光学口径，以红外光谱“射电”望远镜形式实现高分辨率天文成像，可大幅降低红外成像系统的复杂度和体积重量。介绍了平流层飞艇平台的特点，该平台为长基线大衍射口径望远镜的安装提供了有利条件，且可大幅减少大气对天文观测的影响，有望成为天文观测的新型平台。给出了10 m基线、2 m衍射口径红外光谱干涉成像望远镜的布设方案，分析了其探测和成像性能，讨论了关键技术及其可能的技术途径。分析表明，基于平流层飞艇平台，3个2 m衍射口径望远镜的组合在10 m基线下可等效实现口径10 m望远镜的红外天文观测能力。

The status and difficulties of infrared interferometry imaging are analyzed， the principle of infrared coherent detection with laser local oscillator is introduced， the principle of infrared spectral segmentation and interferometry imaging based on electronics is expounded， and the frame structure of laser local oscillator infrared array detector is discussed. By means of laser local oscillator and coherent detector， the correct phase transmission of the infrared signals of the two telescopes can be ensured， and the narrow-band filtering in electronics can be implemented. The narrow-band infrared signals are favorable for the long-baseline interferometry imaging. On this basis， similar to the microwave synthetic aperture radio telescope， it can combine many small apertures in different spatial positions to form a large optical aperture， in the form of infrared spectral "radio" telescope to achieve high-resolution astronomical imaging， which is likely to greatly reduce the complexity， volume and weight of the infrared imaging system. The characteristics of the stratosphere airship platform are described， which provides favorable conditions for the installation of long-baseline large diffraction aperture telescopes and can greatly reduce the impact of the atmosphere on astronomical observation， and may become a new platform for astronomical observation. The arrangement scheme of the infrared spectral interferometry imaging telescope with 10 m baseline and 2 m diffraction aperture is presented， its detection and imaging performance is analyzed， and the key technologies and possible technical approaches are discussed. The analysis shows that， the infrared astronomical observation capability of the 10 m aperture telescope can be equivalent through three 2 m aperture diffraction telescopes with the 10 m baseline based on the stratospheric airship platform.