ADS and radar information system error calibration algorithm based on least square estimation (LSE)

Abstract

The invention belongs to the technical field of information processing in fire-to-air management, and particularly relates to an ADS and radar information system error calibration algorithm used in fire-to-air management. The algorithm aims to both a single target in the air and multiple targets in the air. When the algorithm aims to a single target in the air, the algorithm comprises the steps that (a) a distributed multisensory system is used for receiving data and processing the data; (b) the data are sent to a fusion center, data conversion, time alignment, space alignment, track correlation and data synthesis are achieved according to track data of all sensor nodes, and then the optimal estimation of system errors is obtained. When the algorithm aims to multiple targets in the air, multi-target system error estimation and measurement data integration are achieved through recognition of the multiple targets in the air. The algorithm has the advantages that system errors can be effectively calibrated, monitoring precision is high, tracks which are detected by different radar devices and ADSs and belong to the same target are correlated, multiple radar data are fused and ADS data are further fused, accurate recognition and high-precision positioning and tracking of targets in the air are achieved, and unified and accurate management is realized.

Description

technical field [0001] The invention belongs to the technical field of information processing in the management of air-to-air shooting, and in particular relates to an error registration algorithm for ADS and radar information systems in the management of air-to-air shooting. Background technique [0002] In the initial stage of the management of anti-aircraft shooting activities, due to the small number of units conducting anti-aircraft shooting activities, the operations were infrequent, the total amount of air transportation was not large, and the requirements for the use of airspace were not high. Not obvious. After entering the new century, with the continuous development of my country's national economy, air transport and national defense construction have developed rapidly, the total air transport has grown rapidly, and the scope of military flights has continued to expand; at the same time, the demand for air-to-air shooting activities has also continued to increase....

AI Technical Summary

Problems solved by technology

However, the radar system has many limitations: the straight-line propagation of the radar beam forms a large number of radar blind spots; it cannot cover areas such as oceans and deserts; it cannot obtain situational data such as the planned route and speed of the aircraft, which limits the improvement of tracking accuracy and short-term conflict detection. Ability to alert

These system errors will not only directly affect the target tracking accuracy, but also may cause the correlation failure of ADS data and radar data for the same target, resulting in wrong data fusion and not being able to generate the correct system track

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