FIELD: optics; instrument engineering.
SUBSTANCE: invention relates to the field of optical instrument engineering and relates to the object lidar probing method. Method comprises irradiating the object with pulsed laser radiation, collection of nonelastic scattered photons by a multi-lens antenna, focusing the beam into optical fiber and its direction along the fibers to the next end, in which the fibers are lined up in a single row in the form of a slit, to the spectral analyzer input, and then to the receiver. In addition, the method comprises ensuring that the laser beam direction and the receiver field of view coincide. Laser radiation is supplied to the antenna panel with the receiving channels and along the optical fiber and directed towards the object, matching with the receiving channels field of view. Laser radiation and receiving antenna are divided into parts, separately sending part of the laser radiation to each part of the receiving antenna so that each part of the divided laser beam was illuminating the object in its own direction and its divergence was matched with the receiving antenna corresponding part receiving channels field of view.
EFFECT: technical result consists in increasing the antenna area, reducing the device overall dimensions and weight, ensuring the possibility of the lidar optimal placement in a small volume, and providing the possibility of registering signals by several spatial directions in one measurement.
3 cl, 5 dwg
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Authors
Dates
2019-06-21—Published
2013-03-05—Filed