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:
Mar. 22, 2016
Filed:
May. 25, 2009
Mark Hedley, St Leonards, AU;
David Humphrey, Carlingford, AU;
Mark Hedley, St Leonards, AU;
David Humphrey, Carlingford, AU;
COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION, Campbell, AU;
Abstract
Disclosed is a method of measuring time of arrival of a signal transmitted from a transmitter () to a receiver (-). The method comprises: modulating a plurality of narrowband signal portions onto different carrier frequencies; transmitting, by the transmitter, each modulated signal portion to the receiver; receiving, by the receiver, the transmitted signal portions; estimating the channel impulse response by combining () the received signal portions; and measuring () the time of arrival using the estimated channel impulse response. Further disclosed is a method of measuring a time of arrival of a signal transmitted from a transmitter to a receiver. The method comprises: estimating a noise level () in an impulse response of a channel between the transmitter and the receiver; finding a first peak () in the channel impulse response that is not noise or a side lobe of a subsequent peak, using the estimated noise level; and measuring the time of arrival () using the first peak.