This paper describes a non-coherent technique forfast acquisition of direct sequence spread
spectrum (DS/SS) signals in low earth orbit (LEO) satellitecommunication scenarios. Large …

The first stage of processing within a GPS receiver consists of the signal acquisition process,
the output of which provides a rough estimation of code delay and Doppler frequency. The …

Low-cost global navigation satellite system and global positioning system (GPS) receivers
require reliable baseband processing to guarantee accurate positioning. However, classic …

This thesis provides a comprehensive analysis of the acquisition performance of the mobile-
embedded Global Positioning System (GPS) receiver. Particular emphasis is given to the …

To improve the acquisition sensitivity of the weak and dynamic global navigation satellite
systems signal, the fractional Fourier transform (FRFT) is introduced to deal with the …

When the fractional Fourier transform (FRFT) is introduced into the weak and high-dynamic
global navigation satellite system (GNSS) signal acquisition, the 2-D search cell will be …

Aiming at the attenuation problem when doppler frequency shift is large, pmF-FFT algorithm
based on matched filter is introduced to compensate the attenuation of matched filter …

Non-terrestrial networks (NTNs) such as satellite constellations offer a large coverage area
and the potential to serve vast populations of devices, and they are hence a promising …

This paper presents a Double Estimator Kalman Filter Loop (DE-KFL), which is assisted by
Fractional Fourier Transform (FRFT), for tracking high-dynamic BOC signals. New BOC …

Abstract piNAV L1 is a GPS L1 receiver for position determination of the small satellites at
LEO orbits. The receiver was tested by the ReGen software GPS simulator for static and …