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Time delay and Doppler estimation for wideband acoustic signals in multipath environments
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10.1121/1.3609118
/content/asa/journal/jasa/130/2/10.1121/1.3609118
http://aip.metastore.ingenta.com/content/asa/journal/jasa/130/2/10.1121/1.3609118

Figures

Image of FIG. 1.
FIG. 1.

Surface plots of the wideband auto-ambiguity functions (WAAF) of the LFM signals with different values of time duration T and bandwidth W. (a) T = 1 s, W = 200 Hz; (b) T = 2 s, W = 400 Hz; (c) T = 3 s, W = 600 Hz.

Image of FIG. 2.
FIG. 2.

(Color online) Image plots of time-delay and Doppler scale estimates with different values of time duration T (in s) and bandwidth W (in Hz) by the WCAF, the MP, and the proposed method. The 1st and 2nd rows show the results of (T, W) = (0.5, 200) and (2,400), respectively.

Image of FIG. 3.
FIG. 3.

Surface plots of time-delay and Doppler scale estimates with different values of time duration T (in s) and bandwidth W (in Hz) by the WCAF, the MP, and the proposed method. The 1st and 2nd rows show the results of (T, W) = (0.5,200) and (2,400), respectively.

Image of FIG. 4.
FIG. 4.

Probability of success versus time-bandwidth product.

Image of FIG. 5.
FIG. 5.

Mean squared error (MSE) of the time-delay and Doppler scale estimates versus SNR.

Image of FIG. 6.
FIG. 6.

Mean absolute bias (MAB) of the time-delay and Doppler scale estimates versus SNR.

Tables

Generic image for table
TABLE I.

Time-delay, Doppler scale, and amplitude parameters of the multipath channel.

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/content/asa/journal/jasa/130/2/10.1121/1.3609118
2011-08-01
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Time delay and Doppler estimation for wideband acoustic signals in multipath environments
http://aip.metastore.ingenta.com/content/asa/journal/jasa/130/2/10.1121/1.3609118
10.1121/1.3609118
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