Zobrazeno 1 - 2
of 2
pro vyhledávání: '"Christopher John A. Purcell"'
Publikováno v:
IEEE Transactions on Antennas and Propagation. 62:5656-5665
Measurements of low-frequency magnetic fields produced by horizontal and vertical electric current dipoles in shallow seawater are compared to Weaver model estimates. A periodic chirp covering the band 20 to 500 Hz was transmitted to enable coherent
Autor:
Justin Ablitt, Stephen P. Robinson, Joseph F. Zalesak, Robert M. Drake, Dieter Krüger, Christopher John A. Purcell, A. Lee Van Buren, Alexander M. Enyakov, Alexander Isaev, Wang Yue-bing, Peter M. Harris, Zhang Yue, Zhu Houqing, Gary Hayman, Alex D. Thompson, Pierre Botha
Publikováno v:
The Journal of the Acoustical Society of America. 120:1366-1373
A description is given of the results of a Key Comparison of primary free-field standards for underwater acoustics at frequencies from 1 to 500kHz. This is the first such Key Comparison exercise in the field of underwater acoustic calibration and mea