Method for processing and screening reconnaissance target by low-orbit multifunctional satellite

Abstract

The invention discloses a method for processing and screening a reconnaissance target by a low-orbit multifunctional satellite. The method comprises the steps that firstly, enabling a satellite groundstation to upload attribute information of a to-be-reconnoitred target to a low-orbit satellite in an instruction mode, and enabling the satellite to screen a plurality of targets obtained by an on-board load based on an analysis result; outputting the screened first k target observation data to an on-satellite buffer area for storage; secondly, extracting useful information, including longitudeand latitude, height, heading and rate data, in the k target observation data according to data link formatting message design requirements, and packaging the extracted target observation data into adata link formatting message according to the data link formatting message design requirements; and finally, sending the data link formatting message to a satellite ground station through a downlink.According to the invention, the utilization efficiency of channel resources is improved, and the freshness and accuracy of information are improved.

Description

technical field [0001] The invention belongs to the technical field of on-board software processing of spacecraft, in particular to a method for processing and screening reconnaissance targets by low-orbit multifunctional satellites. Background technique [0002] Over the years, low-orbit satellites have been limited by platform power consumption, volume, weight and other capabilities, and most of them can only carry a single load, or only work with a single load at the same time. With the rapid development of satellite platform technology and the continuous lightweight and miniaturization of payloads, it has become a basic trend in the development of low-orbit satellites to carry multiple types of reconnaissance payloads such as AIS, ADS-B, high-resolution cameras, and long-wave infrared on the same satellite platform. For multi-payload low-orbit satellites, the traditional information processing method is that the on-board payload obtains multiple reconnaissance target inf...

AI Technical Summary

Problems solved by technology

[0004] (1) The information concentration of the transmitted data is low

All the target data acquired on the satellite is sent through the data transmission channel, the data is poorly targeted, but the ground station only needs specific target information, resulting in low channel bandwidth utilization;

[0005] (2) The timeliness of obtaining useful information is poor

After the ground station fuses the satellite to send data, it needs to extract useful information from the massive data collected. The air interface transmission of multi-hop links and the central data processing all lead to a long delay in the investigation results, and the real-time performance of information processing is poor, making the time of data The freshness is low, which affects the accuracy and timeliness of information acquisition

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