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High-resolution large-breadth multispectral noctilucent remote sensing system

A high-resolution, multi-spectral technology, applied in the field of high-resolution and large-band multi-spectral night light remote sensing systems, can solve problems such as high precision, high coverage and high timeliness, and achieve high signal-to-noise ratio and low cost. Effect

Inactive Publication Date: 2021-06-29
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

The above systems are difficult to meet the requirements of modern luminous remote sensing with high precision, high coverage and high timeliness

Method used

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  • High-resolution large-breadth multispectral noctilucent remote sensing system

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Embodiment Construction

[0026] The invention will be further described below in conjunction with the accompanying drawings and specific implementation examples.

[0027] A high-resolution large-scale wide multi-spectral night light remote sensing system, the system includes a double Gaussian image square telecentric optical system, a gradient filter 18, and a large area array imaging detector 19, such as figure 1 As shown, the double Gaussian optical system is an image-space telecentric system with a working wavelength range of 400nm-1000nm, including a front mirror group, an aperture stop and a rear mirror group arranged coaxially in sequence;

[0028] The light beam emitted by the target passes through the double Gaussian optical system, is filtered by the gradient filter 18, and is received by the large area array imaging detector 19.

[0029] Wherein the front lens group includes the first lens 1, the second lens 2, the third lens 3, the fourth lens 4, the fifth lens 5, the sixth lens 6 and the s...

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Abstract

The invention provides a high-resolution large-breadth multispectral noctilucent remote sensing system, and belongs to the technical field of space optics. The system comprises a double-Gaussian optical system, a gradual filter and a large-area-array imaging detector, and the double-Gaussian optical system is an image space telecentric system and comprises a front lens group, an aperture diaphragm and a rear lens group which are coaxially arranged in sequence; the gradual filter comprises eight single-color spectrum sections and a full-color spectrum section, and the eight single-color spectrum sections are distributed from 400-1000 nm; and the optical system can meet the requirements of visible light-to-short wave infrared band imaging and multispectral detection. Due to the characteristics of the system, the system not only can realize a noctilucent remote sensing function, but also can carry out multispectral detection in the daytime by adjusting parameters of the imaging detector, and is used for mineral exploration, water quality monitoring and the like.

Description

technical field [0001] The invention belongs to the technical field of space optics, and relates to a high-resolution, large-width, and multi-spectrum night light remote sensing system. Background technique [0002] Night light remote sensing is the observation of the brightness of lights on the ground at night. Night light remote sensing data can be used to estimate a variety of socio-economic indicators, and is positively correlated with human activities and socio-economic activities. It can be applied to large-scale human activities and their effects, socio-economic parameter estimation, urbanization monitoring and evaluation and other fields. In addition, nighttime light remote sensing data is playing an increasingly important role in war zones, remote areas, and national borders. [0003] At present, many countries in the world have successfully launched luminous remote sensing systems, but there are generally deficiencies such as low resolution, small coverage and sma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/27
CPCG01N21/27
Inventor 刘春雨谢运强樊星皓刘帅
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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