scholarly journals Optimized FFT Algorithm and its Application to Fast GPS Signal Acquisition

10.5772/15929 ◽  
2011 ◽  
Author(s):  
Lin Zhao ◽  
Shuaihe Gao ◽  
Jicheng Ding ◽  
Lishu Guo
Keyword(s):  
Signal Acquisition ◽  
Gps Signal Acquisition

Probability of outlier analysis in weak GPS signal acquisition

2012 ◽  
Vol 349 (5) ◽  
pp. 1930-1943 ◽  
Author(s):  
Kia Fallahi ◽  
Donglin Wang ◽  
Michel Fattouche
Keyword(s):  
Signal Acquisition ◽  
Outlier Analysis ◽  
Gps Signal Acquisition

scholarly journals GPS Signal Detection under Multiplicative and Additive Noise

2012 ◽  
Vol 66 (4) ◽  
pp. 479-500 ◽  
Author(s):  
P. Huang ◽  
Y. Pi ◽  
I. Progri
Keyword(s):  
Signal Detection ◽  
Urban Areas ◽  
Multiplicative Noise ◽  
Additive Noise ◽  
Power Level ◽  
Signal Propagation ◽  
Signal Acquisition ◽  
Detection Scheme ◽  
Additive And Multiplicative Noise ◽  
Gps Signal Acquisition

In some Global Positioning System (GPS) signal propagation environments, especially in the ionosphere and urban areas with heavy multipath, GPS signal encounters not only additive noise but also multiplicative noise. In this paper we compare and contrast the conventional GPS signal acquisition method which focuses on handling GPS signal acquisition with additive noise, with the enhanced GPS signal processing under multiplicative noise by proposing an extension of the GPS detection mechanism, to include the GPS detection model that explains detection of the GPS signal under additive and multiplicative noise. For this purpose, a novel GPS signal detection scheme based on high order cyclostationarity is proposed. The principle is introduced, the GPS signal detection structure is described, the ambiguity of initial PseudoRandom Noise (PRN) code phase and Doppler shift of GPS signal is analysed. From the simulation results, the received GPS signal at low power level, which is degraded by additive and multiplicative noise, can be detected under the condition that the received block of GPS data length is at least 1·6 ms and sampling frequency is at least 5 MHz.

scholarly journals Weak GPS signal acquisition method based on DBZP

2018 ◽  
Vol 29 (2) ◽  
pp. 236-243 ◽  
Author(s):  
Jianing WANG ◽  
◽  
Baowang LIAN ◽  
Zhe XUE ◽  
Keyword(s):  
Signal Acquisition ◽  
Gps Signal Acquisition ◽  
Acquisition Method

GPS signal acquisition using the repeatability of successive code phase measurements

GPS Solutions ◽  
2007 ◽  
Vol 12 (1) ◽  
pp. 43-53 ◽  
Author(s):  
Zhen Zhu ◽  
Frank van Graas ◽  
Janusz Starzyk
Keyword(s):  
Signal Acquisition ◽  
Phase Measurements ◽  
Gps Signal Acquisition
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