Receiving device for three-dimensional (3D) multispectral detection of stripe tube laser radar

A laser radar and receiving device technology, applied in the field of photoelectric imaging, can solve the problems of increasing the complexity and cost of the receiving end, and achieve the effect of high conversion efficiency and wide conversion bandwidth

Inactive Publication Date: 2013-01-30
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, this technique will greatly increase the complexity and cost of the receiving end

Method used

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  • Receiving device for three-dimensional (3D) multispectral detection of stripe tube laser radar

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Embodiment

[0019] A receiving device for 3D multispectral detection of streak tube lidar, such as figure 1 As shown, the device includes a receiving telescope 1, a spectroscopic grating 2, a multi-wavelength conversion system 3, a collimating microlens array 4, a striped tube 5, a coupling light cone 6, a CCD camera 7 and a computer 8, wherein the multi-wavelength conversion system 3 consists of A photodetector array 9, a transimpedance amplifier array 10, a transconductance amplifier array 11 and a vertical cavity surface laser emitter array 12 are formed.

[0020] The photodetector array 9 is composed of InGaAs or PbSe PIN photodiodes whose wavelength response peaks are respectively λ1=1064nm, λ2=532nm, λ3=355nm.

[0021] The function of the transimpedance amplifier array 10 is to convert the current into an amplified voltage, and carry out one-stage amplification to the signal, and the amplification factor is 50 times

[0022] The function of the transconductance amplifier array 11 i...

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Abstract

The invention relates to a receiving device for three-dimensional (3D) multispectral detection of a stripe tube laser radar and belongs to the technical field of photoelectric imaging. The receiving device comprises a receiving telescope, an optical splitting grating, a multi-wavelength transformation system, a collimating micro lens array, a strip tube, a coupling light cone, a charge coupled device (CCD) camera and a computer, wherein the multi-wavelength transition system is formed by a photoelectric detector array, a transresistance amplifier array, a transconductance amplifier array and a vertical cavity surface laser emitter array. The receiving device solves the problem caused by multi-wavelength transformation of a stripe tube laser radar 3D multispectral detection system, transforms multi-wavelength laser containing target multiple spectra and 3D information into laser with wavelengths which a photoelectric cathode of the strip tube corresponds to, has the advantages of being high in transformation efficiency and wide in transformation band, and can be widely applied to the 3D multispectral detection of the stripe tube laser radar.

Description

technical field [0001] The invention relates to a receiving device for 3D multi-spectral detection of a stripe tube laser radar, which belongs to the technical field of photoelectric imaging. Background technique [0002] Multispectral imaging technology is different from traditional single-band imaging technology. It combines imaging technology and spectral measurement technology. The information obtained includes not only two-dimensional spatial information, but also spectral radiation information distributed with wavelength, forming a so-called data cube. , which expands the functions of traditional detection technology, is a qualitative leap in photoelectric detection technology. The biggest feature of this technology is that it can finely divide the working spectral region into multiple spectral ends, and simultaneously image and detect the target scene in each spectral segment. Since most substances have their own unique characteristics of radiation, reflection or abso...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/48G01S17/89
Inventor 韩绍坤赵文
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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