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DEVICE FOR TRACKING A SATELLITE RADIONAVIGATION SIGNAL IN A MULTIPATH ENVIRONMENT
DEVICE FOR TRACKING A SATELLITE RADIONAVIGATION SIGNAL IN A MULTIPATH ENVIRONMENT
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机译:在多路径环境中跟踪卫星辐射导航信号的装置
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摘要
A GNSS receiver comprising a circuit configured to receive a positioning signal comprising a carrier modulated by a subcarrier and a PRN code; a subcarrier and code tracking loop, comprising a first discrimination circuit, configured to calculate a first pseudo range from said received positioning signal and a first reference signal; a code tracking loop, comprising a second discrimination circuit, configured to calculate a second pseudo range from said received positioning signal and a second reference signal; and a calculation circuit configured to evaluate a difference between said first pseudo range and said second pseudo range, and to modify the output of the first discrimination circuit accordingly.;The invention further addresses a method for calculating a pseudo-range in such a GNSS receiver.
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