Use of the cepstrum method for arrival times extraction of overlapping signals due to multipath conditions in shallow water
作者:
Per O. Fjell,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1976)
卷期:
Volume 59,
issue 1
页码: 209-211
ISSN:0001-4966
年代: 1976
DOI:10.1121/1.380849
出版商: Acoustical Society of America
关键词: 3020;6030;8584
数据来源: AIP
摘要:
The use of the cepstrum method for signal arrival times extraction of overlapping signals due to multipath conditions in shallow water is considered. The cepstrum method is applied to signal data from a research cruise. The results fall in two parts: (1) the use of a single cepstrum calculation will not clearly identify the different arrival times and (2) the use of several cepstrum calculations gives a consistant pattern of dominant peaks at or near the calculated arrival times. The assumption made in the cepstrum derivation that echoes are replicas of the first arrival is not correct.Subject Classification: [43]30.20; [43]60.30; [43]85.84.
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