Estimating doppler shift using predefined autocorrelation vectors

Patent metadata

Field	Value
Publication number	US-9036746-B2
Application number	US-201414481931-A
Country	US
Kind code	B2
Filing date	Sep 10, 2014
Priority date	Sep 10, 2013
Publication date	May 19, 2015
Grant date	May 19, 2015

Abstract

A method includes holding in a memory of a communication terminal multiple predefined vectors, each including signal autocorrelation values computed for a respective Doppler shift. A signal is received, and empirical autocorrelation values are calculated for the received signal. An actual Doppler shift of the received signal is estimated by selecting, from among the predefined vectors, a vector whose autocorrelation values best match the empirical autocorrelation values of the received signal.

First claim

The invention claimed is:

1. A method, comprising:
in a communication terminal, holding in a memory multiple predefined vectors, each comprising signal autocorrelation values computed for a respective Doppler shift;
receiving a signal, and calculating empirical autocorrelation values for the received signal; and
estimating an actual Doppler shift of the received signal by selecting, from among the predefined vectors, a vector whose autocorrelation values best match the empiric…

Assignees

• Marvell World Trade Ltd

Inventors

• Perets Yona
• Yellin Daniel
• Pick Kobby
• Mayrench Ronen

Classifications

• H04B1/12 Primary

  Electricity · mapped topic

• H04L5/0007

  Electricity · mapped topic

• H04L27/2657 Primary

  Electricity · mapped topic

• H04L25/0222

  Electricity · mapped topic