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Laser radar water body echo signal simulation method

A technology of water body echo and laser radar, which is applied in the field of remote sensing water depth detection

Inactive Publication Date: 2016-03-02
THE FIRST INST OF OCEANOGRAPHY SOA
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Problems solved by technology

[0004] The invention provides a laser radar water body echo signal simulation method, which improves the parameters of absorption and scattering characteristics of water body components including pure seawater, phytoplankton, suspended matter and yellow substances; furthermore, a clear laser radar echo can be constructed The signal simulation model is used to solve the problem of only processing the laser radar echo waveform in the prior art, which is convenient for intuitive and clear description of the laser radar echo signal

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[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0038] In conjunction with accompanying drawing 1, the specific embodiment of the present invention is further described in detail. The laser radar water body echo signal simulation method calculates the water surface echo signal, water body echo signal, and water bottom echo signal respectively according to the received laser radar water body echo...

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Abstract

A laser radar water body echo signal simulation method calculates a water surface echo signal, a water body echo signal, a water bottom echo signal, a background noise and an internal noise in a receiving device according to a received laser radar water body echo signal and a parameter thereof; and the parameter is input to a laser radar water body echo signal simulation model, and a total echo signal received by a laser radar is output. Absorption and scattering characteristic parameters of water body components containing pure seawater, phytoplankton, a suspended matter and a yellow substance are completed, the laser radar echo signal simulation mode having a clear physical meaning is built, the method is used to solve the problem of waveform processing only for a laser radar echo in the prior art, visual and clear laser radar echo signal description is convenient, and a technical support is provided for design and an application of a laser radar depth sounding system.

Description

technical field [0001] The invention relates to a remote sensing water depth detection method, in particular to a laser radar water body echo signal simulation method for quantitatively describing water body echo signals through a radiation transfer model. Background technique [0002] The laser radar sounding system integrates technologies such as laser, low-light detection, high-precision positioning and high-speed data processing, and is at the forefront of today's international technology development. Lidar sounding is an active remote sensing sounding method. Due to the characteristics of blue-green light with the smallest attenuation coefficient and the strongest penetrating ability in water, 532nm blue-green laser is generally used as the emission band in the laser radar sounding system. The basic principle of its sounding is that the transmitter emits laser light to the water surface at a certain angle, and part of the laser light returns to the receiver of the sound...

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Application Information

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IPC IPC(8): G01S7/48
CPCG01S7/4802
Inventor 马毅崔廷伟张震张靖宇
Owner THE FIRST INST OF OCEANOGRAPHY SOA
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