Paper Info
Title
On the detection probability of parallel code phase search algorithms in GPS receivers
Abstract
The first stage of the signal processing chain in a Global Positioning System (GPS) receiver is the acquisition, which provides for a desired satellite coarse code phase and Doppler frequency estimates to subsequent stages. Thus, acquisition is a two-dimensional search, implemented as demodulation and non-coherent correlation. For a certain Doppler estimate, software-defined GPS receivers typically compute the correlation for all time lags in parallel.One way to detect the presence of a signal is by comparing the ratio between the largest and the second largest correlation peak against a threshold. For this type of receivers, the detection and false alarm probabilities are derived. Interestingly, the false alarm probability is independent of the noise power spectral density, which allows a fixed threshold setting. The analytic results are verified by a series of simulations.
Year
DOI
Venue
2010
10.1109/PIMRC.2010.5672040
PIMRC
Keywords
Field
DocType
Doppler effect,Global Positioning System,demodulation,probability,signal detection,software radio,Doppler frequency,Global Positioning System,correlation peak,demodulation,detection probability,false alarm probability,noise power spectral density,noncoherent correlation,parallel code phase search algorithm,satellite coarse code phase,signal processing chain,software-defined GPS receiver
Demodulation,Signal processing,Noise power,False alarm,Detection theory,Computer science,Real-time computing,Spectral density,Global Positioning System,Doppler effect
Conference
Citations 
PageRank 
References 
7
0.65
4
Authors
3
Name
Order
Citations
PageRank
Bernhard Geiger1111.18
Michael Soudan2262.60
Christian Vogel336128.88