Patent ID: 9658356
Date: 2017-05-23
CPC Classifications: G01V

Claim:
1. A dynamically-adjusted marine acoustic source array for generating an acoustic wave in a body of water, the dynamically-adjusted marine acoustic source array comprising: first, second and third floats; plural first actuation devices connected to the first float, plural second actuation devices connected to the second float, and plural third actuation devices connected to the third float, each actuation device having corresponding first, second or third cables; and plural first source points connected to the first float through the corresponding first cables, plural second source points connected to the second float through the corresponding second cables, and plural third source points connected to the third float through the corresponding third cables, wherein the plural first actuation devices, the plural second actuation devices and the plural third actuation devices are controlled to dynamically adjust corresponding lengths of the corresponding first, second and third cables, to achieve a first desired variable-depth profile for the plural first source points, a second desired variable-depth profile for the plural second source points, and a third desired variable-depth profile for the plural third source points while underwater, so as to achieve a low-frequency energy, a smooth spectrum and reduced high-frequency ghost notches, and wherein a ratio between a depth of a shallowest source point and a depth of a deepest source point of the plural first, second and third source points is between 2.5 and 1.5.