Analog Mitigation of Frequency-Modulated Interference for Improved GNSS Reception
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Yksityiskohdat
| Alkuperäiskieli | Englanti |
|---|---|
| Otsikko | 2020 International Conference on Localization and GNSS, ICL-GNSS 2020 - Proceedings |
| Toimittajat | Jari Nurmi, Elena-Simona Lohan, Joaquin Torres-Sospedra, Heidi Kuusniemi, Aleksandr Ometov |
| Kustantaja | IEEE |
| Sivumäärä | 6 |
| ISBN (elektroninen) | 9781728164557 |
| DOI - pysyväislinkit | |
| Tila | Julkaistu - kesäkuuta 2020 |
| OKM-julkaisutyyppi | A4 Artikkeli konferenssijulkaisussa |
| Tapahtuma | International Conference on Localization and GNSS - Kesto: 2 kesäkuuta 2020 → 4 kesäkuuta 2020 |
Julkaisusarja
| Nimi | 2020 International Conference on Localization and GNSS, ICL-GNSS 2020 - Proceedings |
|---|
Conference
| Conference | International Conference on Localization and GNSS |
|---|---|
| Ajanjakso | 2/06/20 → 4/06/20 |
Tiivistelmä
Powerful in-band interference can saturate a receiver's front-end and limit the usefulness of digital interference suppression methods that are bounded by the receiver's limited dynamic range. This is especially true for the self-interference (SI) encountered in full-duplex (FD) radios, but also in the case of strong interference between co-located radios. However, unlike in FD radios, receivers co-located with interference sources do not typically have direct access to the transmitted interference. This work analyzes the performance of a digitally-assisted analog interference mitigation method and its implementation for the suppression of frequency-modulated (FM) interference before quantization in global navigation satellite system (GNSS) receivers that are co-located with interference sources. Over-the-air measurement results are presented that illustrate the effects of interference mitigation on GPS L1 and Galileo E1 reception in a commercial off-the-shelf GNSS receiver and a software-defined GNSS receiver. The analysis covers the effects of the interference mitigation on the radio frequency (RF) front-end, acquisition, tracking, and positioning stages.