Exploring Homogeneity and Covariance Matrix Structure of Multistatic/Polarimetric Sea-Clutter Data

Exploring Homogeneity and Covariance Matrix Structure of Multistatic/Polarimetric Sea-Clutter Data

Carotenuto, V. (Università degli Studi di Napoli Federico II)
Aubry, A. (Università degli Studi di Napoli Federico II)
De Maio, A. (Università degli Studi di Napoli Federico II)
Fioranelli, F. (TU Delft Microwave Sensing, Signals & Systems)

2023

The design of bespoke adaptive detection schemes relying on the joint use of multistatic/polarimetric measurements requires a preliminary statistical inference on the clutter interference environment. This is fundamental to develop an analytic model for the received signal samples, which is used to synthesize the radar detector. In this respect, the aim of this paper is the design of suitable learning tools to study some important statistical properties of the sea-clutter environment perceived at the nodes of a multistatic/polarimetric radar system. The study is complemented by the use of radar returns measured with the Netted RADar (NetRAD), which collects simultaneously monostatic and bistatic measurements. Precisely, the homogeneity properties of the data in the slow-time domain are first assessed resorting to Generalized Inner Product (GIP) based statistics. Then, the possible presence of structures in the clutter covariance matrices (both inter and intra channels) is investigated through ad-hoc statistical tools. The results show that the data, regardless the polarimetric/geometric configuration, can be modeled as drawn from a stationary process within the coherence time. Moreover, for both the monostatic and the bistatic returns the structure of the covariance matrix depends upon the polarimetric/geometric configuration of the sensing system.

covariance matrix structure
data homogeneity
Generalized Inner Product (GIP)
Multistatic/polarimetric radar
sea-clutter
Spherically Invariant Random Process (SIRP)

http://resolver.tudelft.nl/uuid:0b70a95c-ec5f-4e8e-8b95-6edcb983e715

https://doi.org/10.1109/MetroAeroSpace57412.2023.10190048

IEEE, Piscataway

2024-01-27

978-1-6654-5691-3

Proceedings of the 2023 IEEE 10th International Workshop on Metrology for AeroSpace (MetroAeroSpace)

10th IEEE International Workshop on Metrology for AeroSpace, MetroAeroSpace 2023, 2023-06-19 → 2023-06-21, Milan, Italy

Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Institutional Repository

conference paper

© 2023 V. Carotenuto, A. Aubry, A. De Maio, F. Fioranelli