摘要: Atmospheric dispersion is shown to have a significant effect on wideband coherent laser radars operating on a transition of ordinary carbon dioxide (CO2). Calculations are performed for a hypothetical ground-based laser radar that... 展开 Atmospheric dispersion is shown to have a significant effect on wideband coherent laser radars operating on a transition of ordinary carbon dioxide (CO2). Calculations are performed for a hypothetical ground-based laser radar that is observing targets in low Earth orbit. Linear frequency modulated (LFM) waveforms of bandwidths 200 MHz, 500 MHz, 1 GHz, and 2 GHz are used. The use of a laser radar operating with a different carbon isotope (13C16O2) is suggested to avoid the dispersion problem, and also to reduce atmospheric absorption. Keywords: Laser radar, Ladar, Atmospheric dispersion. 收起