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A method for processing star sensor information

An information processing method and star sensor technology, applied in the direction of integrated navigator, etc., can solve the problem of high power consumption and achieve the effect of improving star sensitivity

Active Publication Date: 2014-09-10
SHANGHAI XINYUE METER FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that an additional
SRAM memory, high power consumption, and the software body of the star sensor is not designed from the perspective of comprehensive scheduling of serial and parallel tasks

Method used

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  • A method for processing star sensor information
  • A method for processing star sensor information
  • A method for processing star sensor information

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0020] As shown in Figure 1, a star sensor module structure diagram is provided. The module structure includes CCD / APS detector 1, SRAM

[0021] As shown in Figure 2, the module operating mode of the star sensor is provided. Including startup mode21, standby mode22, full

[0022] As shown in Figure 3, the star sensor software data flow diagram is provided. FPGA / ASIC completes CCD / APS drive sequence

[0027] (4) based on FPGA (or ASIC) to complete the drive sequence of CCD / APS detector, frame period control signal is given.

[0044] In the feature (10), the star catalog database is stored in the program file in the form of an ordered linear table.

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Abstract

The invention discloses a star sensor information processing method, which includes the following steps: designing a system management module and an application algorithm module, realizing the separation of the system management module and the application algorithm module, and separating the parallel process from the serial process; realizing FPGA / ASIC and The communication protocol of the GNC system; FPGA / ASIC processes the image while generating the detector driving sequence; controls the working mode of the star sensor according to the GNC system command and frame period signal; the CPU completes the star map recognition, star tracking and Attitude solution. Compared with the prior art, the method has the advantages and beneficial effects that it is beneficial to the improvement, upgrading and development of the star sensor algorithm, and improves the data update rate of the star sensor.

Description

A kind of star sensor information processing method Technical field [0001] The present invention relates to satellite sensor technology, especially the information processing method of satellite sensor. Background technique Star sensor is the key component of space vehicle GNC system, is based on computer vision measurement theory development Space precision instrument, mainly used for space vehicle three-axis attitude measurement and space vehicle navigation. A star sensor is usually composed of a light It is composed of three parts: science and precision structure system, photoelectric detector and signal processing circuit and software. Based on computer vision Quantitative theory, with the stable optical signal of the star as input, the star sensor can obtain the precise position of the star in its body coordinate system position, and then based on the position information of the stars stored in the internal star catalog based on the geocentric inertial coordinat...

Claims

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Application Information

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IPC IPC(8): G01C21/24
Inventor 毛晓楠马英超周琦郑循江
Owner SHANGHAI XINYUE METER FACTORY
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