Increase of Carrier-to-Noise Ratio in GPS Receivers Caused by Continuous-Wave Interference

Wang, F.; Li, J.; Li, B.; Nie, Junwei

doi:10.13164/re.2016.0506

Cited by 3 publications

(3 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Considering that single coarse acquisition (C/A) code signal is acquired and tracked in one channel of the GPS receiver, the received GPS L1 C/A code signal overlapped with interference after down-conversion can be given as [3]  …”

Section: Signal Modelmentioning

confidence: 99%

“…The results given in (12) and (14) indicate that by detecting the max value of SCF amplitude at 0 f  (excluding point 0   ), we can easily get the estimate of carrier frequencyˆi f , and by detecting the submax value of SCF amplitude at 0 f  and max value at ˆi f f  , we can get the estimate of data bit rate ˆi R , thus we can get all the CFs of ( ) i t [23], and they are critical to the following BA-FRESH filter and RR-MSWF algorithm given in Sec. 3…”

Section: Csa Of the Received Gps Signalmentioning

confidence: 99%

“…The development of modern wireless communication systems and the emergence of many personal privacy devices (PPDs) make the working environment of the GPS receiver more severe and more complicated than ever [1][2][3]. The adjacent channel interference and/or the cochannel interference from these systems and/or from PPDs may cause the GPS receiver serious performance degradation when their strength is much stronger than that of the GPS signal.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Interference Mitigation for the GPS Receiver Utilizing the Cyclic Spectral Analysis and RR-MSWF Algorithm

Dang¹,

Yan²,

Hu³

et al. 2017

RADIOENGINEERING

View full text Add to dashboard Cite

A method utilizing the cyclic spectral analysis (CSA) and reduced-rank multistage Wiener filtering (RR-MSWF) algorithm to mitigate the interference for the GPS receiver is proposed. In many cases, interference from adjacent channel or from cochannel overlaps on the weak global positioning system (GPS) signal in both time and frequency domains, and it is hard to mitigate this kind of strong interference with the conventional filtering techniques. While with the proposed method given in the paper, we can mitigate the interference effectively. The general process of the proposed method is that first we get the cyclic frequencies (CFs) of the strong interference by CSA of the received GPS signal. And then with the obtained CFs of the interference, we use the blind adaptive frequency shift (BA-FRESH) filter to get the principal process of mitigating the strong interference and separating the weak GPS signal. Finally by utilizing the efficient RR-MSWF algorithm to implement the BA-FRESH filtering, we can mitigate the strong interference effectively and hence improve the performance of the GPS receiver.

show abstract

Section: Signal Modelmentioning

confidence: 99%