Image rapid identification method and device of porous array type sun sensor

Abstract

The invention relates to a fast image identification method of a multi-hole array type sun sensor and a device thereof, the method comprises the steps of: I) establishing a binaryzation matching template; II) carrying out the compression storage of image data; III) identifying a first imaging point of an imaging point matrix; IV) calculating the poison of the first imaging point in the imaging point matrix; V) calculating the initial position of the whole imaging point matrix in an initial image; and VI) calculating the central position of the imaging point matrix when reading initial pixels. The device comprises a light lead-in apparatus, an image sensor, an interface circuit and a computer. The method and the device overcome the shortcomings of slow identification speed and needing large storage capacity which are caused by an image sensor with large area array, when identifying the initial position of a sun imaging matrix in the initial image. The optimized method can be widely used for the multi-hole array type APS sun sensor and greatly improves the identification efficiency of the sun sensor.

Description

technical field [0001] The invention relates to the field of attitude sensors, in particular to a rapid image recognition method and device for a porous array sun sensor used in an attitude measurement control system on a spacecraft. Background technique [0002] The sun sensor is an important device for attitude measurement on spacecraft, and it has been widely used in the aerospace field, including space shuttles, earth satellites and deep space probes. In recent years, with the requirements of space missions, the requirements for the accuracy and reliability of spacecraft attitude measurement relative to the sun have become higher and higher, especially for systems that require high-precision imaging, including reconnaissance satellites, resources and astronomical observation satellites and communication satellites. The high-precision sun angle measurement can realize the accurate alignment of the solar panels to ensure the maximum energy acquisition of the satellite. A...

AI Technical Summary

Problems solved by technology

The usual initial pixel reading step is to traverse and recognize the initial image. When the image sensor array is large, the recognition speed is slow and requires a large amount of image storage.

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