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The large advancement achieved in Global Navigation Satellite
Systems (GNSS) technologies makes it indispensable to our society,
ranging from scientific research to people's ordinary life.
However, multipath effects have become one of the limiting error
sources to the further improvements in performance. In this book,
the reasons why multipath can cause severe errors to GNSS receivers
are analyzed, and a new multipath mitigation architecture, namely
Coupled Amplitude and Delay Lock Loops (CADLL), is presented. The
CADLL architecture uses the idea of separately tracking the
line-of-sight signal and multipaths, thus boosting the performance.
A new Angle-of-Arrival (AOA) estimation algorithm using antenna
array, namely iterative Maximum Likelihood Estimation (iMLE), is
also presented in this book. iMLE has the advantages of low
computational complexity, fast and global convergence and better
estimation accuracy. It is a promising method for mitigating very
near multipath mitigation in the future work.
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