An Improved Passive Synthetic Aperture Algorithm Based on Curvilinear Maneuverability of Autonomous Underwater Vehicles

Shenglong JIN; Yu LI; Haining HUANG

doi:10.11999/JEIT171225

Volume 40 Issue 9

Aug. 2018

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Article Navigation > Journal of Electronics & Information Technology > 2018 > 40(9): 2265-2272

Shenglong JIN, Yu LI, Haining HUANG. An Improved Passive Synthetic Aperture Algorithm Based on Curvilinear Maneuverability of Autonomous Underwater Vehicles[J]. Journal of Electronics & Information Technology, 2018, 40(9): 2265-2272. doi: 10.11999/JEIT171225

Citation:

Shenglong JIN, Yu LI, Haining HUANG. An Improved Passive Synthetic Aperture Algorithm Based on Curvilinear Maneuverability of Autonomous Underwater Vehicles[J]. Journal of Electronics & Information Technology, 2018, 40(9): 2265-2272. doi: 10.11999/JEIT171225

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An Improved Passive Synthetic Aperture Algorithm Based on Curvilinear Maneuverability of Autonomous Underwater Vehicles

doi: 10.11999/JEIT171225

Shenglong JIN^{1, 2},
Yu LI^1
,,
Haining HUANG^1
,

1.
Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China
2.
University of Chinese Academy of Sciences, Beijing 100190, China

Funds: The National Natural Science Foundation of China (11504402), The Pioneering Action Initiative (SXJH201603)

Received Date: 2017-12-25
Rev Recd Date: 2018-05-02

Available Online: 2018-07-12

Publish Date: 2018-09-01

Abstract

Abstract

In order to overcome difficulty in extending flank array by traditional Extended Towed Array Measurement (ETAM) technique based on curvilinear maneuverability of Autonomous Underwater Vehicles (AUV), a new ETAM method is proposed by combining estimating phase correction factors in beam domain and linear fitting motion compensation in element domain. The method estimates phase differences in beam domain and implements linear fitting of phase correction factors in element domain to compensate phase error due to curvilinear motion, which can acquire accurate phase correction factors and extend array. Results of simulation and experiment show that no matter straight line navigation or curvilinear maneuverability, the method achieved higher DOA estimation accuracy, angular resolution and signal gain, which is also suitable for multi-target resolving. Especially in low signal-noise-ratio condition, the improvement of this method in performance is more obvious, for which it has strong practicality and environmental tolerance.
- Passive Synthetic Aperture Sonar (PSAS),
- Curvilinear maneuverability,
- Beam domain,
- Element domain,
- Motion compensation

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References(16)

References

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