Patent ID: 7408841
Filing Date: 2008-08-05
Classification: G01S,H04B

Abstract:
1. A method of determining the directivity index for an array of passive acoustic sensors comprising: creating a virtual array of sensors wherein said virtual array of sensors models an array of passive acoustic directional sensors in an isotropic noise field with a perfectly correlated signal relative to an omni-directional receiver; defining an array coordinate system for the virtual array of sensors; defining a sensor coordinate system for the virtual array of sensors; defining at least one sensor attribute for the virtual array of sensors; defining operational data for the virtual array of sensors; defining frequency data for the virtual array of sensors; calculating directivity index of said virtual array of sensors based upon the array coordinate system, sensor coordinate system, at least one sensor attribute, operation data and frequency data for the virtual array of sensors; and displaying the directivity index of the virtual array of sensors as a numerical value.