Polarization calibration and compensation device and method of polarization laser radar

A technology of lidar and compensation device, applied in radio wave measurement systems, instruments, etc., can solve problems such as measurement result errors
CN104297744AInactive Publication Date: 2015-01-21XIAN UNIV OF TECH
9 Cites 12 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XIAN UNIV OF TECH
Publication Date
2015-01-21
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a polarization calibration and compensation device of polarization laser radar. The polarization calibration and compensation device comprises a polarization calibration portion and a polarization compensation portion. The polarization calibration portion comprises a laser. A first 1 / 4 lambda wave plate, a first 1 / 2 lambda wave plate, a beam expander, a laser radar system, a polarizer, a convergent mirror and an energy meter are sequentially arranged on the light beam of the laser. The polarization compensation portion comprises a rotary controller. A second 1 / 4 lambda wave plate, a third 1 / 4 lambda wave plate and a second 1 / 2 lambda wave plate are connected to the rotary controller through cables. The polarization compensation portion is arranged between the laser radar system and the polarizer. The second 1 / 4 lambda wave plate, the third 1 / 4 lambda wave plate and the second 1 / 2 lambda wave plate are sequentially arranged on the light beam of the laser. The invention further discloses a polarization calibration and compensation method of the polarization laser radar. The polarization calibration and compensation device and method of the polarization laser radar carry out accurate calibration and compensation on the laser radar system, and the polarization influences of an optical system are eliminated.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of polarization detection, and relates to a polarization calibration and compensation device of a polarization laser radar, and also relates to a calibration and compensation method using the device. Background technique

[0002] Polarization detection technology has been widely used in imaging lidar and atmospheric lidar. On the basis of active imaging, the imaging laser radar polarization imaging technology makes full use of the polarization information of the laser to obtain more and more accurate target feature information. The obtained polarization images can effectively distinguish metals and non-metals, man-made targets and natural targets, etc. Therefore, the laser radar polarization imaging remote sensing technology has attracted great attention in recent years. When polarized lidar is used to detect atmospheric aerosols, it can be used to distinguish spherical particles from non-spherical particle...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More