Realization method of linear TDI type infrared detector area array imaging mode

Abstract

The invention discloses a realization system of a linear TDI type infrared detector area array imaging mode. The realization system realizes the area array imaging mode output through a Bypass testingmode, and comprises an upper computer, a preprocessing device and a linear TDI type infrared detector; the upper computer sends an area array work command to the preprocessing device; the preprocessing device starts setting a linear TDI type infrared detector control register after receiving the command of the upper computer, and continuously switches the content of relevant bits of the Bypass testing mode, thereby enabling the detector to output a determined pixel line imaging signal; the preprocessing device receives an analog imaging signal output by a conversion detector, and finally sends the arranged digital imaging data to the upper computer; and the upper computer accomplishes the image display and storage. The realization system disclosed by the invention is simple and practicable, visual in result, and short in development period, improves the integration level of the preprocessing device, and provides the technical support for the practicability of the linear TDI type infrared detector.

Description

technical field [0001] The invention belongs to the technical field of infrared imaging, and relates to a method for realizing an area array imaging mode of a linear TDI type infrared detector. Background technique [0002] The linear TDI infrared detector is an important photoelectric load in the field of remote sensing surveying and mapping. Its TDI linear push-broom working mode can realize the acquisition of large and wide imaging data. Multispectral imaging systems often integrate multiple linear TDI infrared detectors. Realize multi-spectral imaging data acquisition and provide the basis for later spectral fusion. In the multi-spectral linear array TDI infrared detector integrated system, in order to ensure the geometric accuracy of imaging data, the scanning direction must be strictly perpendicular to the direction of detector pixel array arrangement; in order to ensure that the spectral data can be fused, each array The consistency of the lines must be guaranteed be...

AI Technical Summary

Problems solved by technology

In the installation and adjustment of the area array detector, the positional relationship between the target and the pixel is usually determined by using a straight-line target to determine the position of the line array. However, the normal working mode of the line array TDI device is TDI integration, and the obtained imaging data is As a result of the joint action of multiple pixels, the relationship between pixel arrangement and imaging data cannot be effectively established, which increases the difficulty of system integration and adjustment. , if the imaging data can correspond to the arrangement of pixel positions, the efficiency of integrated assembly and adjustment will be greatly improved

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