Analog Mitigation of Frequency-Modulated Interference for Improved GNSS Reception
Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review
Details
| Original language | English |
|---|---|
| Title of host publication | 2020 International Conference on Localization and GNSS, ICL-GNSS 2020 - Proceedings |
| Editors | Jari Nurmi, Elena-Simona Lohan, Joaquin Torres-Sospedra, Heidi Kuusniemi, Aleksandr Ometov |
| Publisher | IEEE |
| Number of pages | 6 |
| ISBN (Electronic) | 9781728164557 |
| DOIs | |
| Publication status | Published - Jun 2020 |
| Publication type | A4 Article in a conference publication |
| Event | International Conference on Localization and GNSS - Duration: 2 Jun 2020 → 4 Jun 2020 |
Publication series
| Name | 2020 International Conference on Localization and GNSS, ICL-GNSS 2020 - Proceedings |
|---|
Conference
| Conference | International Conference on Localization and GNSS |
|---|---|
| Period | 2/06/20 → 4/06/20 |
Abstract
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.