A Dynamic Variable Multi-Data Format Satellite Aid Data Processing System

Abstract

The invention discloses a dynamic variable multi-data-format satellite-assisted data processing system. The system comprises a state parameter processing module, a scanning information processing module, a satellite timekeeping and calibrating module and an auxiliary data synthesizing module. The state parameter processing module receives satellite parameters, camera parameters and broadcast benchmark parameters, conducts classification after verification and sends the parameters to the respective modules to be processed. The satellite timekeeping and calibrating module processes input pulsesper second, internally generates a 1M clock microsecond counter, and receives and calibrates broadcast benchmark time. The scanning information processing module sends angle collecting pulses to obtain scanning angle information, receives a camera series, dynamically updating the scanning angle information according to the series value, and ensures that star map data strictly corresponds to the scanning angle during operation. The auxiliary data synthesizing module conducts scheduling according to the satellite data format, outputs frame header information when frame synchronizing starts, outputs line header information, star map data and end-of-line information when line synchronizing starts, and outputs end-of-frame information when star map data ends.

Description

technical field [0001] The invention relates to a dynamically variable multi-data format satellite auxiliary data processing system, which can receive and process various complex and dynamically variable multi-data format satellite auxiliary data, and belongs to the technical field of satellite communication. Background technique [0002] With the development of satellite remote sensing technology, all kinds of users have higher and higher requirements for image information, and at the same time, they have higher and higher requirements for auxiliary data such as current camera status and satellite parameters, with data formats and types becoming more and more complex, and output forms Changeable and other characteristics. For example, the large elliptical orbit early warning visible video processor is used to receive the visible star calibration data through the visible light channel when the camera is calibrated on the orbit, and to plan and set the camera scanning paramet...

AI Technical Summary

Problems solved by technology

[0003] The existing auxiliary data processing system does not have these functions, and it is not easy to expand on the original basis, and the versatility is not strong

It is mainly reflected in: because the scanning angle information is not received, the original system does not need to dynamically update the scanning information for processing functions, and thus does not need to adjust the corresponding star map; there is no frame requirement for the satellite as a whole, and the camera does not have the concept of a frame, only processing line header information, so The original system does not need to process frame headers, frame tails, and line tails; the original satellite auxiliary data formats have few types, simple processing, and no preset expandable functions and interfaces, which cannot be designed for versatility and scalability

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