Patent ID: 7030813
Filing Date: 2006-04-18
Classification: G01S,H01Q

Abstract:
1. A method to prevent punch-through in monopulse signal reception, for use with an array antenna having a row of radiating elements including left outer elements, at least one left central element, at least one right central element and right outer elements, the method comprising the steps of: (a) receiving signals via said elements; (b) forming an outer sum signal and an outer difference signal by processing signals received via the left outer elements and right outer elements; (c) forming a central sum signal and a central difference signal by processing signals received via the at least one left central element and at least one right central element; (d) combining said outer sum and central sum signals provided in steps (b) and (c) at predetermined relative signal levels to form a composite sum signal; (e) combining said outer difference and central difference signals provided in steps (b) and (c) at predetermined relative signal levels to form a composite difference signal; and (f) implementing step (e) with the central difference signal combined at a higher signal level which is higher, on a per element basis, than the relative signal level of each of the outer sum, outer difference and central sum signals, thereby providing punch-through avoidance.