Method, device, and detection radar for detecting foreign objects on pavement

Abstract

This application relates to a method for detecting foreign objects on the road surface, which belongs to the field of radar detection technology, and is used for identifying and shielding large targets in environments such as airports. The method includes obtaining echo data and background clutter data of foreign objects on the road surface , determine the constant false alarm detection reference data of the unit to be detected according to the echo data; determine the floating threshold k of the constant false alarm rate detection a and a fixed threshold k b and background clutter threshold k c , establish the target judgment condition according to the threshold; for a certain detection unit, if the predetermined condition is met, it will be judged as a foreign object on the road surface; if the predetermined condition is not met, it will be judged as a large target and shielded. The method, device, and detection radar for detecting foreign objects on the pavement of the present application can recognize large targets on the pavement and automatically shield them while realizing normal detection of foreign objects on the pavement, and the application can greatly improve the detection of foreign objects on the pavement Accuracy and detection efficiency, reducing the false alarm rate of foreign object detection and the pressure of airport operation and maintenance.

Description

technical field [0001] The application belongs to the technical field of radar detection, and in particular relates to a radar detection method and device for foreign objects on a road surface, and a detection radar. Background technique [0002] Foreign objects on the runway (Foreign Object Debris, FOD) refers to some foreign objects that may damage the aircraft on the airport runway, such as metal parts, broken stones or bottles, etc., which seriously affect the take-off and landing safety of the aircraft. In order to identify FOD, the current mainstream detection technology is the method of radar foreign object detection combined with optical foreign object confirmation, that is, the radar conducts continuous automatic detection of the airport pavement, and automatically transmits information such as the location and size of the foreign object after the foreign object is found. To the optical equipment, the optical equipment confirms the foreign object and obtains the ima...

AI Technical Summary

Problems solved by technology

[0005] However, in addition to fixed-position equipment such as side lights and center line lights, there will also be other objects that are not fixed on the road surface, such as aircraft that stop at the crossing for a short time and wait in line for release

The alarms caused by such objects cannot be resolved by using the above two detection methods

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