大气色散效应对信标应用的影响研究
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摘要: 计算了由于大气色散效应造成的信标光与发射主激光的实际天顶角之间的角间距，其中考虑了天气条件、地理位置、发射天顶角和信标波长等影响因素。结果表明：发射天顶角和信标波长对信标偏离角间距的影响较大，而天气条件和地理位置的影响相对较小。发射天顶角越大，角间距越大。信标波长应尽量靠近发射光波长，同时，应优选波长大于发射光的信标。Abstract: Angular separation of real zenith angle beacon and project laser due to atmospheric dispersion is calculated in this paper. Several factors, such as weather, site, project zenith angle and beacon wavelength, are under consideration. Project zenith angle and beacon wavelength have much influence on the angular separation. Weather and site have relatively less influence on the angular separation. The larger the project zenith angle is, the larger the angular separation is. Beacon wavelength should be close to the wavelength of the project laser and longer wavelength is profitable.
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Key words:
- dispersion /
- beacon /
- zenith angle /
- atmospheric refraction
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