Patent ID: 8879357

Claim:
A method of generating a synthetic aperture sonar (SAS) signal, comprising: providing a sonar array having a receiver array, comprising a plurality of receiver elements arranged along a first axis, and including a first end and a second end, a first transmitter element, and a second transmitter element, wherein the first transmitter element, the second transmitter element and the plurality of receiver elements each have a first width; generating, using the second transmitter element, a first acoustic signal at a first position; moving the sonar array to a second position along the first axis in a direction from the first end to the second end of the receiver array, wherein the second position is at a distance of about one-half the first width from the first position; and generating, using the first transmitter element, a second acoustic signal at the second position; wherein the second acoustic signal is orthogonal to the first acoustic signal.