Verfahren zur Unterdrückung von Windmühlenechos und Regenstörungen in einem Bodenbasierten Impuls-Doppler-Radar

Details

Veröffentlichungs-Nr.

EP3128344

Aktenzeichen

EP15002332

Anmeldetag

5. August 2015

Veröffentlichung

28. Oktober 2020

Erteilung

28. Oktober 2020

Rechtsraum

EP

IPC

G01S13/10G01S13/522G01S13/524G01S13/95G01S13/58G01S7/41

Abstract

The invention is concerned with a method for suppressing windmill returns in a ground based pulse Doppler radar comprising the following steps: a) emitting a waveform comprising a train of pulses at an average pulse repetition frequency of 3 to 7 kHz, b) upon reception of the echo pulses, transforming the echo pulses into a range Doppler matrix containing the signal power levels of the radar detections and indicating their respective range gate and Doppler filter, c) determining the detections in any of the second, third, penultimate and last Doppler filters in a range gate where windmills are suspected, d) determining the signal power levels of detections in the first Doppler filter at range gates that are identical or adjacent to the range gate where windmills are suspected, e) determining the maximum of the signal power levels determined in the previous step, f) comparing the corresponding radar cross section of the maximum signal power level determined in the previous step with a predefined threshold value derived from the characteristic radar cross section of a rotor head of a windmill, g) excluding the detections in the range gate where windmills are suspected in the second, third, penultimate and last Doppler filter from further processing if the radar cross section of the maximum signal power level is above the predefined threshold.

Anmelder

Firmen

HENSOLDT Sensors GmbH
Airbus DS Electronics and Border Security GmbH

Land

🇩🇪 Deutschland

Fachgebiete