Visible to the public "Wall clutter mitigation and target detection using Discrete Prolate Spheroidal Sequences"Conflict Detection Enabled

Title"Wall clutter mitigation and target detection using Discrete Prolate Spheroidal Sequences"
Publication TypeConference Paper
Year of Publication2015
AuthorsZ. Zhu, M. B. Wakin
Conference Name2015 3rd International Workshop on Compressed Sensing Theory and its Applications to Radar, Sonar and Remote Sensing (CoSeRa)
Date PublishedJune 2015
PublisherIEEE
ISBN Number978-1-4799-7420-7
Accession Number15603081
KeywordsAntenna measurements, antennas, Band-pass filters, bandpass modulated DPSS basis, Clutter, compressed sensing, compressive measurements, compressive sensing, Dictionaries, Discrete Prolate Spheroidal Sequences, Fourier-based technique, greedy algorithm, greedy algorithms, image filtering, image sampling, image sequences, iterative algorithm, Iterative methods, modulated discrete prolate spheroidal sequences, object detection, potential target localization, pubcrawl170104, Radar, radar imaging, Reverberation, sampled bandpass signals, stationary target detection sensitivity improvement, stepped-frequency radar signal, target detection, wall clutter mitigation, wall return mitigation
Abstract

We present a new method for mitigating wall return and a new greedy algorithm for detecting stationary targets after wall clutter has been cancelled. Given limited measurements of a stepped-frequency radar signal consisting of both wall and target return, our objective is to detect and localize the potential targets. Modulated Discrete Prolate Spheroidal Sequences (DPSS's) form an efficient basis for sampled bandpass signals. We mitigate the wall clutter efficiently within the compressive measurements through the use of a bandpass modulated DPSS basis. Then, in each step of an iterative algorithm for detecting the target positions, we use a modulated DPSS basis to cancel nearly all of the target return corresponding to previously selected targets. With this basis, we improve upon the target detection sensitivity of a Fourier-based technique.

URLhttps://ieeexplore.ieee.org/document/7330260
DOI10.1109/CoSeRa.2015.7330260
Citation Key7330260