A Track Fitting Method for Airborne Electronic Chart Search and Rescue Targets

Abstract

The invention discloses a method for fitting trajectory of a search and rescue target on an airborne electronic chart, comprising the following steps: a) Firstly, obtain a distress signal from a life-saving device and / or a position indicator, and calculate the position parameter of the target in distress on an airborne computer platform ; b) then obtain the discrete latitude and longitude data as the position data of the target in distress; c) fit the continuous trajectory of the target in distress according to the obtained discrete latitude and longitude data; d) finally on the airborne electronic chart according to the fitted trajectory Displays the real-time location of the target in distress. The airborne electronic chart search and rescue target trajectory fitting method provided by the present invention uses the sparse discrete data obtained from the distress signal to fit the search and rescue target position to form a continuous trajectory, which can greatly improve the search and rescue efficiency, thereby ensuring Under the environment of the scene, it can obtain the real-time position of the target in distress, and effectively lock and track the search and rescue target.

Description

technical field [0001] The invention relates to a search and rescue target locking and tracking processing method, in particular to an airborne electronic chart search and rescue target trajectory fitting method. Background technique [0002] All kinds of aviation vehicles (airplanes, helicopters) responsible for maritime rescue have many advantages such as fast speed and large search range, which provide a very effective means for maritime distress search and rescue. The electronic chart display system installed on these aviation vehicles can display the sea surface situation information and search and rescue target information collected by various airborne target detectors (radar, photoelectric equipment, beacon machine, automatic identification system, etc.), and can Through the display device, the position of the search and rescue target and the attitude information in the sea are intuitively presented on the chart, which provides great convenience for the search and res...

AI Technical Summary

Problems solved by technology

[0003] However, due to the high complexity and uncertainty of the search and rescue scene environment, the sea situation will change dynamically, which will affect the accuracy and real-time performance of target search and positioning

On the one hand, when the sea conditions are very complicated, the work of the airborne target detector itself will be affected, and various photoelectric noises in the space will interfere with the detection sensitivity of the airborne detector, resulting in discontinuous information and data, making it impossible to effectively lock and track. , the position and state of the search and rescue target itself will change autonomously or passively at any time, and the position uncertainty brought about by this change will also affect the effective rescue of the aviation aircraft carrying the rescue mission

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