Abstract
GNSS receivers in highly-manoeuvrable platforms, such as military
aircraft and rockets, bear large values of acceleration which prevents
the use of simple signal acquisition techniques. Herein, we propose
a new approach to the acquisition problem which is divided into two
parts: a coarse code delay/Doppler frequency acquisition algorithm
followed by a refinement (and validation) algorithm based on two
banks of Kalman filters. The first bank allows to obtain estimates
of the code delay and the Doppler frequency. The second bank permits
to refine the frequency estimates.
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