Results 31 to 40 of about 777,330 (303)
Active sonar reverberation suppression change graph.
, 2023 Active sonar reverberation suppression change graph.
Zhen Wang (72451) +3 more
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High-Resolution Wideband Waveform Design for Sonar Based on Multi-Parameter Modulation
Remote Sensing, 2023 The design of transmitting waveforms is an effective way to improve the detection performance of sonar systems. For the problem of high-range sidelobe when designing reverberation-resistant waveforms, this paper proposes a high-resolution wideband ...
Tong Duan +3 more
doaj +1 more source
Applied Sciences, 2021 The estimation of the late reverberant spectral variance (LRSV) is of paramount importance in most reverberation suppression algorithms. This letter proposes an improved single-channel LRSV estimator based on Habets LRSV estimator by using an adaptive ...
Zhaoqi Zhang, Xuelei Feng, Yong Shen
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Interface reverberation model.
, 2023 Reverberation is the primary background interference of active sonar systems in shallow water environments, affecting target position detection accuracy.
Zhen Wang (72451) +3 more
core +1 more source
Reverberation suppression algorithm for LS beamforming based on Wiener post-filter
Dianzi Jishu Yingyong, 2018 Reverberation causes speech signal time and frequency to blur, and speech is difficult to understand when serious. In order to improve the speech quality, this paper presents a least squares beamforming reverberation suppression algorithm with Wiener ...
Zhang Xiuzai +3 more
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Sensors, 2023 Sidelobe suppression is a major challenge in wideband beamforming for acoustic research, especially in high noise and reverberation environments. In this paper, we propose a multi-objective NSGA-II wideband beamforming method based on a spherical ...
Zhenghong Liu +4 more
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A Binaural System For The Suppression Of Late Reverberation
, 1998 Publication in the conference proceedings of EUSIPCO, Rhodes, Greece ...
Katia Lebart +2 more
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Improving Elastography using SURF Imaging for Suppression of Reverberations [PDF]
, 2010 For some of the applications of the Second-order UltRasound Field (SURF) imaging technique, a real-time delay-estimation algorithm has been developed for estimating spatially range-varying delays in RF signals. This algorithm is a phase-based approach for subsample delay estimation, and makes no assumption on the local delay variation.
Grythe, Jørgen
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Reverberation time measurements in non-diffuse acoustic field by the modal reverberation time [PDF]
, 2016 The increasing presence of low frequency sources and the lack of acoustic standard measurement procedures make the extension of reverberation time measurements to frequencies below 100 Hz necessary.
Casassa, F. +4 more
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Reverberation characterization and suppression in the presence of channel spreading [PDF]
The Journal of the Acoustical Society of America, 1994 In active sonar, the reverberation plus target time series can be modeled as the joint convolution of the signal with the channel and scatterer impulse responses. Especially in shallow water, the channel response cannot be adequately modeled as propagation over discrete paths.
Geoffrey S. Edelson, Ivars P. Kirsteins
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