Communications: directive radio wave systems and devices (e.g. – Directive – Including a satellite
Reexamination Certificate
2010-04-14
2011-10-25
Tarcza, Thomas (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a satellite
Reexamination Certificate
active
08044851
ABSTRACT:
A method of multipath error suppression in a satellite navigation receiver, including steps of navigation satellites signals searching, receiving and processing complex signals from each satellite, tracking found signals with a following-up open loop and determining coordinates, receiver velocity and exact time based on measurements of direct and reflected signal delay and Doppler frequency, the method including: forming, on the basis of navigation parameters, a two-dimensional accumulated power grid, calculating single-path signal corrections using the centered accumulated power grid determining, whether a multipath is presented, and performing, in case of positive result of this determination, improvement of corrections using weights, wherein, performing improvement of corrections using weights is carried out by forming a likelihood function on the basis of a centered accumulated powers vector, and correction is performed according to the found likelihood function global maximum.
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Fedotov Alexander
Jalali Bijan
Kholostov Mikhail
Mikhaylov Nikolay
Edell Shapiro & Finnan LLC
Galt Cassie
MStar France SAS
MStar Semiconductor Inc.
MStar Software R&D (Shenzhen) Ltd.
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