Detection in reverberation using space time adaptive prewhiteners.
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.
Li
Wei
W
Ma
Xiaochuan
X
Zhu
Yun
Y
Yang
Jun
J
Hou
Chaohuan
C
D000465:Algorithms; D003198:Computer Simulation; D008962:Models, Theoretical; D009038:Motion; D009792:Oceans and Seas; D011336:Probability; D011825:Radar; D012815:Signal Processing, Computer-Assisted; D013997:Time Factors; D014465:Ultrasonics; D014732:Vibration