An integrated system with a circular field of view

Abstract

The invention provides an integrated system of an annular visual field, wherein a common main optical system, and independent subsequent elements and receiving devices are utilized, and three independent modules, namely a high-resolution imaging module, a multibeam laser echo detecting module and an atmosphere echo detecting module. The high-resolution imaging module realizes a visible light multispectral high-resolution imaging function. The multibeam laser echo detecting module realizes a five-beam laser echo receiving function. The atmosphere echo detecting module realizes an atmosphere echo receiving function. Three channels form the annular visual field through reasonable laying. The optical system according to the invention has advantages of high ray machine structure integration degree, high resolution, small size, small weight, etc. Furthermore the integrated system realizes functions of high resolution and high-precision distance measuring to large-area ground objects, cloud aerosol detection and three-dimensional plotting.

Description

technical field [0001] The invention belongs to the technical field of space optical remote sensors, and relates to a multifunctional integrated system with a circular field of view. Background technique [0002] Since the 1990s, nearly 20 sets of laser range finders have been launched internationally. According to public reports, the United States successfully launched the laser ranging Lidar in the lunar observation Clementine system, and the Mars observation laser ranging system MOLA- 2. The Earth Science Observation Laser Ranging System GLAS, the Lunar Orbiter Laser Altimeter LOLA equipped with the Lunar Reconnaissance Orbiter satellite, and the laser rangefinder equipped with the kocmoc-1246 mapping satellite launched by Russia are representative. Among them, the laser wavelengths of MOLA-2, LOLA and kocmoc-1246 are single-wavelength 1064nm, and the receiving apertures are 500mm, 140mm, and 250mm respectively, while Clementine and GLAS use dual-wavelength 1064nm and 532...

AI Technical Summary

Problems solved by technology

[0010] From the above information, it can be seen that most of the laser ranging optical systems at home and abroad are single-function, single-wavelength and have a small number of beams, and the systems that have been successfully applied in orbit have a small receiving aperture.

With the continuous improvement of use requirements, and in order to reduce volume, weight and cost, it is necessary to realize the integrated design of large-aperture high-resolution imaging, multi-beam laser ranging and atmospheric detection, which cannot be solved by conventional optical systems.

Images