The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 28, 2015
Filed:
Nov. 19, 2013
Gilat Satellite Networks Ltd., Petah Tikva, IL;
Oded Bialer, Petah Tikva, IL;
Uzi Ram, Givat Elah, IL;
Gilat Satellite Networks Ltd., Petah Tikva, IL;
Abstract
Satellite communication systems utilize spreading by repetition techniques, including block repetition, to enable operation at low signal to noise conditions. A carrier frequency offset between a transmitter and a receiver results in phase offsets between repetitions. Thus, combining the repetitions requires estimation of the phase offset between the repetitions before coherent de-spreading can be performed. Disclosed herein are methods for estimating a phase offset between successive block repetitions. The methods may utilize more than two repetitions for determining a common phase offset between any two successive repetitions. In some embodiments, these methods may allow summation of repetitions with better coherency and/or with a lower de-spreading loss.