Using convolutional decoding to improve time delay and phase estimation in digital communications

United States Patent

7,653,155
January 26, 2010
View the Complete Patent at the US Patent & Trademark Office
Digital Communication
The time delay and/or phase of a communication signal received by a digital communication receiver can be estimated based on a convolutional decoding operation that the communication receiver performs on the received communication signal. If the original transmitted communication signal has been spread according to a spreading operation, a corresponding despreading operation can be integrated into the convolutional decoding operation.
Ormesher; Richard C. (Albuquerque, NM), Mason; John J. (Albuquerque, NM)
Sandia Corporation (Albuquerque, NM)
10/982,134
November 4, 2004
375/341 ; 375/150;
H04L 27/06 (20060101); H04B 1/707 (20060101);
375/141,147,148,242,260-262,265,340,341,142,144,150,152,343 714/794,795,800
This invention was developed under Contract DE-AC04-94AL8500 between Sandia Corporation and the U.S. Department of Energy. The U.S. Government has certain rights in this invention.