Pulse-mode parametric transmitter

Details Pulse-mode parametric transmitter Pulse-mode parametric transmitter

G - Physics

01

S

349/49

G01S 15/00 (2006.01) G01S 15/10 (2006.01) H04B 11/00 (2006.01)

Patent

CA 1065045

ABSTRACT OF THE DISCLOSURE A parametric sound transmitter in which a secondary signal having highly directional and penetrating characteristics is produced. A primary frequency acoustic carrier signal is pulse modulated and is of such level as to cause distortion thereof by the medium. The pulse frequency is the same as that of the secondary signal or a sub multiple thereof.

253098

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