Micro‐Doppler signatures of helicopters in multistatic passive radars. Issue 9 (1st December 2015)

• Record Type: Journal Article
• Authors: Bączyk, Marcin Kamil; Samczyński, Piotr; Kulpa, Krzysztof; Misiurewicz, Jacek
• Is Part Of: IET radar, sonar & navigation. Volume 9:Issue 9(2015)
• Page Start: 1276
• Page End: 1283
• Publication Date: 2015-12-01
• Subjects: passive radar -- radar receivers -- helicopters -- synthetic aperture radar -- radar imaging; micro‐Doppler signatures -- multistatic geometry -- passive radar receiver -- commercial DVB‐T transmitter -- real multistatic passive radar measurement -- ISAR images -- helicopter rotor blades; Signal processing -- Periodicals; Radar -- Periodicals; Sonar -- Periodicals; Electronics in navigation -- Periodicals; Navigation -- Periodicals; 621.3848
• DOI: 10.1049/iet-rsn.2015.0125
• Languages: English
• ISSNs: 1751-8784

Abstract

Abstract : This study presents an analysis of micro‐Doppler signatures of helicopters obtained using a network of passive radar receivers utilising multistatic geometry. In the multistatic scenario, for each passive radar receiver the target is visible from different bistatic angles, which results in different micro‐Doppler signatures. This feature allows additional information on the observed helicopter target to be obtained. The presented concept has been successfully verified by the authors using the real micro‐Doppler signatures of a helicopter collected during the measurement campaign. As an illuminator of opportunity for the passive radar network a commercial digital video broadcasting‐terrestrial (DVB‐T) transmitter was used. The results of the applied micro‐Doppler analysis for the real multistatic passive radar measurement carried out are presented in this study. In addition, some examples of inverse synthetic aperture radar (ISAR) images of helicopter rotor blades based on micro‐Doppler analysis in the multistatic configuration are shown in this study.