Patent ID: 6598014
Filing Date: 2003-07-22
Classification: G01S

Abstract:
A system for tracking ambient signals, detecting or receiving desired signals, and suppressing undesired signals, comprising:an array of sensors through which ambient signals are received, said array generating N channels of data, wherein N is an integer greater than zero; a transformation device that accepts the data from said array and generates Nâ€² channels of data, wherein Nâ€² is an integer greater than zero; an adaptive processor that accepts the Nâ€² channels of data from the output of the transformation device, said adaptive processor processes the Nâ€² channels of data to update the settings of said transformation device, such that only Nâ€² degrees of freedom are adaptively manipulated by said adaptive processor at any instant, the manipulation being done in a manner that instantaneously senses changes in signal environment and adjusts the settings of said transformation device in a closed-loop, wherein said adaptive processor controls all N degrees of freedom adaptively over time, thus nulling and tracking performance is then limited by the N degrees of freedom and not the Nâ€² degrees of freedom that are actually used adaptively at any instant.