Siren noise attenuation by non-linear processing of time-frequency information

被引：0

作者：

Sepehr, Hamid ^{[1
]}

Ahmadi, Masoud ^{[2
]}

Brennan, Paul ^{[1
]}

机构：

[1] UCL, Dept Elect Engn, London, England

[2] Elara Tek Ltd, London, England

来源：

NEW ASPECTS OF SIGNAL PROCESSING AND WAVELETS | 2008年

关键词：

Siren reduction; noise reduction; STFT; wavelet; notch filter;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Siren signals are used to warn other cars and pedestrian about the presence of an emergency vehicle, this signal is leaked into the communication path between the emergency vehicle and the emergency call centre and substantially degrades the intelligibility of speech signal. In past, research has been mainly focused on siren cancellation on the source of siren signal by using extra microphones which requires complex acoustic and electrical consideration. In this paper, two solutions and approach are presented for attenuation of the siren in an emergency call centre without having any knowledge about the emergency vehicle, type of siren and the presence of a siren.

引用

页码：52 / +

页数：2

共 50 条

[31] Strong random noise attenuation by shearlet transform and time-frequency peak filtering
Zhang, Chao
van der Baan, Mirko
GEOPHYSICS, 2019, 84 (06) : V319 - V331
[32] Advanced superior execution time optimal time-frequency filter suitable for non-linear FM signals estimation
Ivanovic, Veselin N.
Jovanovski, Srdjan
MICROPROCESSORS AND MICROSYSTEMS, 2020, 74
[33] NOISE-REDUCTION USING FREQUENCY-DOMAIN NON-LINEAR PROCESSING FOR THE ENHANCEMENT OF SPEECH
MUNDAY, E
BRITISH TELECOM TECHNOLOGY JOURNAL, 1988, 6 (02): : 71 - 83
[34] Segmenting time-frequency peak filtering method to attenuation of seismic random noise
Lin Hong-Bo
Li Yue
Xu Xue-Chun
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2011, 54 (05): : 1358 - 1366
[35] Seismic noise attenuation by means of an anisotropic non-linear diffusion filter
Baddari, Kamel
Ferahtia, Jalal
Aifa, Tahar
Djarfour, Noureddine
COMPUTERS & GEOSCIENCES, 2011, 37 (04) : 456 - 463
[36] Noise attenuation for seismic signal by non-linear thresholding in curvelet domain
Zhang Henglei
Liu Tianyou
Zhang Henglei
Liu Tianyou
PROCEEDINGS OF THE 2009 2ND INTERNATIONAL CONGRESS ON IMAGE AND SIGNAL PROCESSING, VOLS 1-9, 2009, : 3652 - +
[37] New processing techniques for transient signals with non-linear variation of the instantaneous frequency in time
Gelman, L
Ottley, M
MECHANICAL SYSTEMS AND SIGNAL PROCESSING, 2006, 20 (05) : 1254 - 1262
[38] Auditory and Nociceptive Stimuli Responses in the Electroencephalogram A Non-linear Measures and Time-frequency Representation Based Analysis
Melia, U.
Vallverdu, M.
Claria, F.
Valls-Sole, J.
Caminal, P.
METHODS OF INFORMATION IN MEDICINE, 2015, 54 (03) : 209 - 214
[39] Challenges in Designing of an Optimal Time-Frequency Filter for the Non-Linear FM Signal Estimation and the Possible Solution
Ivanovic, Veselin N.
Jovanovski, Srdjan
2019 IEEE 39TH INTERNATIONAL CONFERENCE ON ELECTRONICS AND NANOTECHNOLOGY (ELNANO), 2019, : 704 - 707
[40] Time-Frequency Processing Key Technologies in Time-Frequency Related Systems
Zhou, Wei
Li, Xiaodong
Li, Zishuai
Jia, Lifeng
Liu, Chen
Li, Xiaoyu
CSNC 2011: 2ND CHINA SATELLITE NAVIGATION CONFERENCE, VOLS 1-3, 2011, : 687 - 693

← 1 2 3 4 5 →