Receiver of multiplexed binary offset carrier (MBOC) modulated signals
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United States of America Patent
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Aug 13, 2013
Grant Date -
Jun 3, 2010
app pub date -
Jan 23, 2008
filing date -
Jan 24, 2007
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Abstract
A receiver for receiving a navigation signal comprising a carrier modulated by a code modulation function of a given code rate and further modulated by a composite sub-carrier modulation function having first and second components with two different rates both of which arc different to the code rate, the receiver comprising processing means arranged to: generate a first estimate of delay based on the code modulation only; generate a second estimate of delay based on the first component of the sub-carrier modulation only; and generate a third estimate of delay based on the second component of the sub-carrier modulation only; and determine a further delay estimate from the first second and third delay estimates.
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