Wideband Waveform and Receiver Filter Bank Design for Clutter Suppression
Artikel i vetenskaplig tidskrift, 2015

Modern wideband radar systems with long integration time, equipped with arbitrarily waveform generators, raise a demand for advanced signaling transmission schemes. In this paper, we propose two algorithms to select transmit waveforms and receiver filters. The techniques are based on a clutter suppression criterion. For the first algorithm, we employ an optimized filter bank, and for the second algorithm, we use a matched filter bank. Clutter suppression is achieved by minimizing the correlation between receiver filters and interfering clutter echoes. The algorithm, for the optimized filter bank, is extended to adapt the transmission scheme and receiver filters to a time-evolving scenario. Adaptation parameters are based on estimates of a clutter map and detected target characteristics. To estimate the clutter map we propose a Kalman filter, whereas target parameters are calculated using a least-squares fit to data. The efficiency of the algorithms and the adaptation scheme are visualized through a numerical simulation.

waveform design

tracking

wideband systems

receiver filter design

Radar signal processing

clutter suppression

Författare

Marie Ström

Chalmers, Signaler och system, Signalbehandling och medicinsk teknik, Signalbehandling

Mats Viberg

Chalmers, Signaler och system, Signalbehandling och medicinsk teknik, Signalbehandling

K. Falk

SAAB Electronic Defence Systems (EDS)

IEEE Journal on Selected Topics in Signal Processing

1932-4553 (ISSN)

Vol. 9 8 1366-1376

Ämneskategorier

Elektroteknik och elektronik

DOI

10.1109/jstsp.2015.2467359

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2018-09-06