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1. (WO2018125700) METHOD AND SYSTEM FOR USING A RECEIVE PLANAR PHASED ARRAY ANTENNA ON A COMMUNICATION PLATFORM TO ESTIMATE A POINTING ERROR OF THE ANTENNA AND TO ORIENT ITS BORESIGHT TOWARDS THE TRANSMITTER. 


IPC:  H04B 7/185 H01Q 1/12 H01Q 3/26 H01Q 21/00 H01Q 21/06 H04B 7/08 

Applicants:  HUGHES NETWORK SYSTEMS, LLC 

Inventors:  NOERPEL, Anthony BHASKAR, Uday R. BECKER, Neal David KAY, Stanley E. 
Title:  METHOD AND SYSTEM FOR USING A RECEIVE PLANAR PHASED ARRAY ANTENNA ON A COMMUNICATION PLATFORM TO ESTIMATE A POINTING ERROR OF THE ANTENNA AND TO ORIENT ITS BORESIGHT TOWARDS THE TRANSMITTER. 
Abstract: 
A system and method for orienting a communications antenna are disclosed. The method includes: segmenting a receive phase array antenna into N subarrays with Mantenna elements in each subarray; receiving, a known signal, by each of the Mantenna elements of at least four (4) of the Nsubarrays; scanning in a direction of the known signal by applying a beam weight associated with each of the M elements in each of the at least 4subarrays to obtain Mweighted signals for each of the at least 4subarrays; combining the Mweighted signals for each of the at least 4subarrays into signals A, B, C and D, respectively; generating an azimuth difference signal per a weighted sum of (A+B) and (C+D) and an elevation difference signal per a weighted sum of (A+C) and (B+D); computing the weights of the azimuth difference signal, such that the azimuth difference signals is driven to a zero signal; and computing the weights of the elevation difference signal, such that the elevation difference signal is driven to a zero signal. N is greater than or equal to four (4) and M is greater than or equal to one (1).
