Optical-microwave shared image resolution evaluation strip target and its construction method

Abstract

The invention relates to an optical-microwave common image resolution evaluation bar target and a construction method thereof. The optical-microwave common image resolution evaluation bar target comprises a cement board target bar, a coarse gravel area, a target substrate layer and the like, wherein the target bar is a reflecting material capable of presenting the difference of black and white contrast in an optical or microwave imaging loading image; different reflecting materials can be laid on the target substrate layer for the purpose that the target substrate serves as a substrate, so that the smoothness of the target surface is guaranteed, and long-time running is facilitated. The optical-microwave common image resolution evaluation bar target has the benefits that optical and microwave remote sensing loading space resolutions can be evaluated at the same time; the optical or microwave remote sensing image with the resolution of 0.1-5 meters can be evaluated; the resolutions can be obtained without calculation; the geometrical shape of the target cannot be influenced by snow, rain and frost, and the target is suitable for outdoor long-term use; the target has good self-cleaning capacity, and dust on the surface of the target can be washed by rainwater and wind; concrete boards and gravels are low in outdoor degeneration speed, so that the maintenance cost required for normal operation is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of remote sensing, in particular to a novel fixed target that can be used to simultaneously evaluate the image resolution of optical and microwave remote sensing loads and a construction method thereof. Background technique [0002] Remote sensing technology can obtain target electromagnetic radiation information dynamically on a large scale, realize efficient cognition of real physical properties of ground objects, and has broad application prospects in resources, surveying and mapping, meteorology, and military reconnaissance. With the gradual development of earth observation and remote sensing technology in the direction of satisfying quantitative applications, regular and regular monitoring of the dynamic changes in the performance of satellite loads during operation, accurate detection of the degree of change, accurate discovery of the cause of the change and the formulation of targeted remedial measures...

AI Technical Summary

Problems solved by technology

[0011] The object of the present invention is to provide an optical-microwave shared image resolution evaluation strip target and its construction method, to solve the problem in the prior art that it is difficult to evaluate the optical and microwave image resolution at the same time, and it is impossible to evaluate the current typical spaceborne objects below 5m Resolution image, and the problem that the image resolution cannot be directly visually obtained from the image

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