A Detection Method Based on Bipolar Pulse for Undersea and Buried Small Targets

doi:10.3969/j.issn.1000-1093.2019.01.017

Abstract

Abstract: A low-frequency bipolar pulse is designed and a space-time joint detection method is proposed for detecting the undersea and buried small targets. The detected signals are analyzed from spectrum and wideband ambiguity function, respectively. A signal-to-reverberation ratio of detecting undersea and buried small target is analyzed based on sonar equation. The test verification of small target was completed by a test platform. Theoretical analysis, simulation calculation and test results show that the low frequency, narrow beam and small grazing angle are favorable for detecting the undersea and buried small target. Low-frequency bipolar pulse and space-time joint detection method can be used as a new detecting signal and method, respectively, which can improve the spatial resolution and the performance of reverberation suppression for undersea and buried small targets. Key

Key words: underseaandburiedsmalltarget, bipolarpulse, space-timejointdetection, testverification

CLC Number:

TB566

YUE Lei. A Detection Method Based on Bipolar Pulse for Undersea and Buried Small Targets[J]. Acta Armamentarii, 2019, 40(1): 143-152.

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第40卷第1期
2019 年1月兵工学报ACTA
ARMAMENTARIIVol.40No.1Jan.2019