Michael Brian Janik

US Patent:

7486591, Feb 3, 2009

Filed:

Oct 11, 2006

Appl. No.:

11/548418

Inventors:

Jesse T. Gratke - Royal Oak MI, US
Ryan J. Lewis - Bristol RI, US
Michael F. Janik - Portsmouth RI, US
Thomas B. Pederson - Portsmouth RI, US
William C. Zurawski - West Greenwich RI, US
James H. Miller - Kingston RI, US

Assignee:

Raytheon Company - Waltham MA

International Classification:

G01S 7/52

US Classification:

367137

Abstract:

Low probability of marine mammal impact (LPMMI) sound signals have a modulation component selected to reduce a behavioral response from a marine mammal from that which would occur when transmitting another sound signal having approximately the same time duration component, approximately the same bandwidth component, and approximately the same center frequency component as the LPMMI waveform but having a modulation component comprising a frequency modulation.