TY - GEN
T1 - Combined coherent acquisition method performed two navigation signals
AU - Zhang, Bing Qi
AU - Chen, He
AU - Liu, Feng
AU - Li, Jing
AU - Liu, Jian
PY - 2012
Y1 - 2012
N2 - At present, the Global Navigation Satellite System (GNSS) receivers require improved acquisition sensitivity to extend the boundary of their application ranges. Under the background that each GNSS begins or plans to broadcast multi-frequency signals, combined acquisition utilizing multi-frequency signals or multi-beam signals is the effective means to improve the acquisition sensitivity. Combined non-coherent accumulation method is frequently used and characterized by simple algorithm and low resource consumption, but is not applicable to uncertain signal-to-noise power ratio. This paper analyzes in detail the theoretical influence of inter-signal phase difference and power ration the performance of combined coherent acquisition method, makes simulation experiments, and proves the effectiveness of combined coherent acquisition method.
AB - At present, the Global Navigation Satellite System (GNSS) receivers require improved acquisition sensitivity to extend the boundary of their application ranges. Under the background that each GNSS begins or plans to broadcast multi-frequency signals, combined acquisition utilizing multi-frequency signals or multi-beam signals is the effective means to improve the acquisition sensitivity. Combined non-coherent accumulation method is frequently used and characterized by simple algorithm and low resource consumption, but is not applicable to uncertain signal-to-noise power ratio. This paper analyzes in detail the theoretical influence of inter-signal phase difference and power ration the performance of combined coherent acquisition method, makes simulation experiments, and proves the effectiveness of combined coherent acquisition method.
KW - Combined acquisiton
KW - GNSS
KW - High-sensitivity acquisition
UR - http://www.scopus.com/inward/record.url?scp=84876459009&partnerID=8YFLogxK
U2 - 10.1109/ICoSP.2012.6491672
DO - 10.1109/ICoSP.2012.6491672
M3 - Conference contribution
AN - SCOPUS:84876459009
SN - 9781467321945
T3 - International Conference on Signal Processing Proceedings, ICSP
SP - 36
EP - 39
BT - ICSP 2012 - 2012 11th International Conference on Signal Processing, Proceedings
T2 - 2012 11th International Conference on Signal Processing, ICSP 2012
Y2 - 21 October 2012 through 25 October 2012
ER -