Detection Performance of Polarization and Spatial Diversities for Indoor GNSS Applications
Multipath fading in the form of signal power fluctuation poses a formidable challenge to GNSS signal detection in harsh multipath environments such as indoors. Antenna diversity techniques such as polarization and spatial diversities can be used to combat multipath fading in wireless propagation cha...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2012/879142 |
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| author | Mohammadreza Zaheri Ali Broumandan Vahid Dehghanian Gérard Lachapelle |
| author_facet | Mohammadreza Zaheri Ali Broumandan Vahid Dehghanian Gérard Lachapelle |
| author_sort | Mohammadreza Zaheri |
| collection | DOAJ |
| description | Multipath fading in the form of signal power fluctuation poses a formidable challenge to GNSS signal detection in harsh multipath environments such as indoors. Antenna diversity techniques such as polarization and spatial diversities can be used to combat multipath fading in wireless propagation channels. This paper studies and compares GPS signal detection performance enhancements arising from the spatial and polarization diversity techniques. Performance enhancements are quantified from a theoretical perspective and later verified based on several test measurements in various indoor environments. Enhancement is quantified based on measuring the correlation coefficient values between diversity branches, SNR levels, and computing the level crossing rate and average fade duration. In addition, the processing gain is quantified and the performance of each individual diversity system is evaluated. Experimental results show that, for a given target detection performance in terms of the probability of false alarm and the probability of detection, the required input SNR level to meet the target detection performance can be significantly reduced utilizing the diversity system. |
| format | Article |
| id | doaj-art-5fa26eda003949c2a978c975fac5e895 |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-5fa26eda003949c2a978c975fac5e8952025-02-03T01:33:13ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772012-01-01201210.1155/2012/879142879142Detection Performance of Polarization and Spatial Diversities for Indoor GNSS ApplicationsMohammadreza Zaheri0Ali Broumandan1Vahid Dehghanian2Gérard Lachapelle3Schulich School of Engineering, Position Location and Navigation (PLAN) Group, University of Calgary, Calgary, AB, T2N 1N4, CanadaSchulich School of Engineering, Position Location and Navigation (PLAN) Group, University of Calgary, Calgary, AB, T2N 1N4, CanadaSchulich School of Engineering, Position Location and Navigation (PLAN) Group, University of Calgary, Calgary, AB, T2N 1N4, CanadaSchulich School of Engineering, Position Location and Navigation (PLAN) Group, University of Calgary, Calgary, AB, T2N 1N4, CanadaMultipath fading in the form of signal power fluctuation poses a formidable challenge to GNSS signal detection in harsh multipath environments such as indoors. Antenna diversity techniques such as polarization and spatial diversities can be used to combat multipath fading in wireless propagation channels. This paper studies and compares GPS signal detection performance enhancements arising from the spatial and polarization diversity techniques. Performance enhancements are quantified from a theoretical perspective and later verified based on several test measurements in various indoor environments. Enhancement is quantified based on measuring the correlation coefficient values between diversity branches, SNR levels, and computing the level crossing rate and average fade duration. In addition, the processing gain is quantified and the performance of each individual diversity system is evaluated. Experimental results show that, for a given target detection performance in terms of the probability of false alarm and the probability of detection, the required input SNR level to meet the target detection performance can be significantly reduced utilizing the diversity system.http://dx.doi.org/10.1155/2012/879142 |
| spellingShingle | Mohammadreza Zaheri Ali Broumandan Vahid Dehghanian Gérard Lachapelle Detection Performance of Polarization and Spatial Diversities for Indoor GNSS Applications International Journal of Antennas and Propagation |
| title | Detection Performance of Polarization and Spatial Diversities for Indoor GNSS Applications |
| title_full | Detection Performance of Polarization and Spatial Diversities for Indoor GNSS Applications |
| title_fullStr | Detection Performance of Polarization and Spatial Diversities for Indoor GNSS Applications |
| title_full_unstemmed | Detection Performance of Polarization and Spatial Diversities for Indoor GNSS Applications |
| title_short | Detection Performance of Polarization and Spatial Diversities for Indoor GNSS Applications |
| title_sort | detection performance of polarization and spatial diversities for indoor gnss applications |
| url | http://dx.doi.org/10.1155/2012/879142 |
| work_keys_str_mv | AT mohammadrezazaheri detectionperformanceofpolarizationandspatialdiversitiesforindoorgnssapplications AT alibroumandan detectionperformanceofpolarizationandspatialdiversitiesforindoorgnssapplications AT vahiddehghanian detectionperformanceofpolarizationandspatialdiversitiesforindoorgnssapplications AT gerardlachapelle detectionperformanceofpolarizationandspatialdiversitiesforindoorgnssapplications |