Abstract
A major problem in moving platform active sonar systems is the detection of targets in spatially distributed and Doppler-spread reverberation. This paper presents a novel space time adaptive prewhitener for reverberation based on a two-dimensional autoregressive model. The space time adaptive prewhitener jointly processes received data in angle and Doppler to improve the separation of a target from reverberation. The detector using the space time adaptive prewhitener is shown to yield better detection performance than previously known schemes when operating in a reverberation background containing target echoes.
Original language | English |
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Journal | Journal of the Acoustical Society of America |
Volume | 124 |
Issue number | 4 |
Pages (from-to) | EL236-EL242 |
ISSN | 0001-4966 |
DOIs | |
Publication status | Published - 2008 |
Externally published | Yes |