Impact on Antijamming Performance of Channel Mismatch in GNSS Antenna Arrays Receivers
The performance of antijamming is limited by channel mismatch in global navigation satellite system (GNSS) antenna arrays receivers. Only when the amplitude and phase characteristics of each array channels are the same is the interference likely to be completely suppressed. This paper analyzes the i...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2016-01-01
|
| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2016/1909708 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832545407679332352 |
|---|---|
| author | Zukun Lu Junwei Nie Feiqiang Chen Gang Ou |
| author_facet | Zukun Lu Junwei Nie Feiqiang Chen Gang Ou |
| author_sort | Zukun Lu |
| collection | DOAJ |
| description | The performance of antijamming is limited by channel mismatch in global navigation satellite system (GNSS) antenna arrays receivers. Only when the amplitude and phase characteristics of each array channels are the same is the interference likely to be completely suppressed. This paper analyzes the impact on antijamming performance of channel mismatch. We built the model of channel mismatch and derived the impact on transfer function with space-time adaptive processor (STAP) of channel mismatch in theory. The impact factor of channel mismatch is proposed by the fuzzy transfer function, which could directly reflect the antijamming performance under channel mismatch. In addition, every characteristic in the channel mismatch model is analyzed. The analysis results show that the greatest impacts on antijamming performance are the range of amplitude wave and the group delay bias, while the influence of the number of amplitudes is next. As for the effect of group delay fluctuation is the smallest. |
| format | Article |
| id | doaj-art-eb81e60e46024f1293107f7da452f15d |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-eb81e60e46024f1293107f7da452f15d2025-02-03T07:26:03ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772016-01-01201610.1155/2016/19097081909708Impact on Antijamming Performance of Channel Mismatch in GNSS Antenna Arrays ReceiversZukun Lu0Junwei Nie1Feiqiang Chen2Gang Ou3College of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, ChinaCollege of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, ChinaCollege of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, ChinaCollege of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, ChinaThe performance of antijamming is limited by channel mismatch in global navigation satellite system (GNSS) antenna arrays receivers. Only when the amplitude and phase characteristics of each array channels are the same is the interference likely to be completely suppressed. This paper analyzes the impact on antijamming performance of channel mismatch. We built the model of channel mismatch and derived the impact on transfer function with space-time adaptive processor (STAP) of channel mismatch in theory. The impact factor of channel mismatch is proposed by the fuzzy transfer function, which could directly reflect the antijamming performance under channel mismatch. In addition, every characteristic in the channel mismatch model is analyzed. The analysis results show that the greatest impacts on antijamming performance are the range of amplitude wave and the group delay bias, while the influence of the number of amplitudes is next. As for the effect of group delay fluctuation is the smallest.http://dx.doi.org/10.1155/2016/1909708 |
| spellingShingle | Zukun Lu Junwei Nie Feiqiang Chen Gang Ou Impact on Antijamming Performance of Channel Mismatch in GNSS Antenna Arrays Receivers International Journal of Antennas and Propagation |
| title | Impact on Antijamming Performance of Channel Mismatch in GNSS Antenna Arrays Receivers |
| title_full | Impact on Antijamming Performance of Channel Mismatch in GNSS Antenna Arrays Receivers |
| title_fullStr | Impact on Antijamming Performance of Channel Mismatch in GNSS Antenna Arrays Receivers |
| title_full_unstemmed | Impact on Antijamming Performance of Channel Mismatch in GNSS Antenna Arrays Receivers |
| title_short | Impact on Antijamming Performance of Channel Mismatch in GNSS Antenna Arrays Receivers |
| title_sort | impact on antijamming performance of channel mismatch in gnss antenna arrays receivers |
| url | http://dx.doi.org/10.1155/2016/1909708 |
| work_keys_str_mv | AT zukunlu impactonantijammingperformanceofchannelmismatchingnssantennaarraysreceivers AT junweinie impactonantijammingperformanceofchannelmismatchingnssantennaarraysreceivers AT feiqiangchen impactonantijammingperformanceofchannelmismatchingnssantennaarraysreceivers AT gangou impactonantijammingperformanceofchannelmismatchingnssantennaarraysreceivers |