Hyperspectral continuous-light laser radar system for detection of tiny underwater particles

A technology of tiny particles and laser radar, which is applied in the field of laser hyperspectral remote sensing, can solve the problems of detection signal attenuation, difficulty in underwater detection, inability to measure distance and positioning, etc., achieve high resolution, improve dynamic range, and detect accurately.

Pending Publication Date: 2017-05-31
广州光和光科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the difficulty of underwater detection of traditional equipment, the invention will cause the detection signal to attenuate by the square with the distance, and cannot realize accurate ranging and positioning at the same time.

Method used

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  • Hyperspectral continuous-light laser radar system for detection of tiny underwater particles
  • Hyperspectral continuous-light laser radar system for detection of tiny underwater particles

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Embodiment 1

[0028] Such as figure 1 As shown, this embodiment is a hyperspectral continuous light laser radar system for detecting underwater tiny particles, including 1 photodetector (CCD / CMOS), 2 optical path compensation units with a rear lens, and 3 spectroscopic units with a rear wedge prism. 4 projection gratings, 5 splitting unit front wedge prisms, 6 optical path compensation unit front lenses, 7 modulation optical slits, 8 light collection lens groups, 9 diode lasers, 10 laser collimation components, 11 cycle counter (with laser drive power supply).

[0029] working principle:

[0030] The hyperspectral continuous light laser radar system for detecting underwater tiny particles described in this embodiment adopts the following imaging and ranging method: the continuous laser of the laser emitting unit emits laser light along the target direction, and the laser light is emitted into the atmospheric environment through the laser collimation original In the environment, targets in...

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Abstract

The invention discloses a hyperspectral continuous-light laser radar system for detection of tiny underwater particles. The hyperspectral continuous-light laser radar system comprises a laser transmitting unit, a laser receiving unit, a light splitting unit, a light path compensation unit, a photoelectric detection unit and a data acquisition and analysis unit, wherein a light source of the laser transmitting unit is a continuous laser source and transmits continuous laser to a to-be-detected object, and backscattered light of the to-be-detected object is reflected to the light path compensation unit and the light splitting unit and is converged on the photoelectric detection unit finally; the photoelectric detection unit is connected with the data acquisition and analysis unit and signals are analyzed through the data acquisition and analysis unit; the laser transmitting unit is connected with the photoelectric detection unit, and the photoelectric detection unit transmits a synchronizing pulse signal and synchronously modulates light emitting frequency of the laser transmitting unit. According to the hyperspectral continuous-light laser radar system, continuous-light laser is taken as the light source, spatial distribution detection is realized with an imaging method, optical elements are adopted for adjustment, higher resolution is realized, and synchronizing detection for spectrum and space information of the tiny underwater particles is realized.

Description

technical field [0001] The invention belongs to the field of laser hyperspectral remote sensing, and in particular relates to a hyperspectral continuous light laser radar system for detecting underwater tiny particles. Background technique [0002] In order to realize the high-precision and multi-level space monitoring of the complete underwater ecosystem, the combination of multiple technologies is the development trend of remote sensing technology. Remote sensing technology has been widely used in the field of ecological environment detection. Among them, hyperspectral technology is the frontier of remote sensing technology. The current hyperspectral imaging technology has the advantages of high spectral resolution and wide detection range, and can provide spectral image information of the measured target. However, it does not have the function of precise distance measurement and positioning. LiDAR technology has the advantages of good monochromaticity and high emission ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S17/88G01S17/89
CPCG01S17/88G01S17/89
Inventor 赵光宇米克尔布约得歌德苏尼斯万贝里何赛灵
Owner 广州光和光科技有限公司
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