摘要: An infrared heterodyne radiometer has sufficient sensitivity for application to high resolution spectrometric studies of the sun and absorption sunlight in atmosphere. In 10-μm region, can typically range from less than 6.7 × 10−3 cm−1 10−2 cm−1. The minimum detectable signal approach 10−24 W/Hz. (IHR) also be used atmospheric propagation at emission frequencies CO2 laser examination feasibility space-to-ground communication links.