AM-FM Interference Excision in Spread Spectrum Communications via Projection Filtering
<p/> <p>Recently, Amin et al. introduced a projection filtering method for excising constant amplitude FM jammers from DSSS communications, with minimal distortion to the PN sequence. In this paper, we show that this approach can be applied to AM-FM jammers as well, with a simple modific...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2001-01-01
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| Series: | EURASIP Journal on Advances in Signal Processing |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1155/S1110865701000257 |
| _version_ | 1818521292155912192 |
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| author | Jang Seong-Cheol Loughlin Patrick J |
| author_facet | Jang Seong-Cheol Loughlin Patrick J |
| author_sort | Jang Seong-Cheol |
| collection | DOAJ |
| description | <p/> <p>Recently, Amin et al. introduced a projection filtering method for excising constant amplitude FM jammers from DSSS communications, with minimal distortion to the PN sequence. In this paper, we show that this approach can be applied to AM-FM jammers as well, with a simple modification. Theoretical performance measures (correlator SNR) of the AM-FM projection method are derived, and demonstrate that near ideal performance is achieved for unbiased estimates of the jammer parameters. Results showing the effects of estimation errors in the AM and FM of the jammer on SNR are also provided. In general, FM errors cause greater performance degradation than the same level of error in estimating the AM.</p> |
| first_indexed | 2024-12-11T01:49:05Z |
| format | Article |
| id | doaj.art-c715f3a26c4a4701b88400c889d704e7 |
| institution | Directory Open Access Journal |
| issn | 1687-6172 1687-6180 |
| language | English |
| last_indexed | 2024-12-11T01:49:05Z |
| publishDate | 2001-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | EURASIP Journal on Advances in Signal Processing |
| spelling | doaj.art-c715f3a26c4a4701b88400c889d704e72022-12-22T01:24:49ZengSpringerOpenEURASIP Journal on Advances in Signal Processing1687-61721687-61802001-01-0120014903567AM-FM Interference Excision in Spread Spectrum Communications via Projection FilteringJang Seong-CheolLoughlin Patrick J<p/> <p>Recently, Amin et al. introduced a projection filtering method for excising constant amplitude FM jammers from DSSS communications, with minimal distortion to the PN sequence. In this paper, we show that this approach can be applied to AM-FM jammers as well, with a simple modification. Theoretical performance measures (correlator SNR) of the AM-FM projection method are derived, and demonstrate that near ideal performance is achieved for unbiased estimates of the jammer parameters. Results showing the effects of estimation errors in the AM and FM of the jammer on SNR are also provided. In general, FM errors cause greater performance degradation than the same level of error in estimating the AM.</p>http://dx.doi.org/10.1155/S1110865701000257projection filteringspread spectrumAM-FM jammerPN distortioninstantaneous frequency |
| spellingShingle | Jang Seong-Cheol Loughlin Patrick J AM-FM Interference Excision in Spread Spectrum Communications via Projection Filtering EURASIP Journal on Advances in Signal Processing projection filtering spread spectrum AM-FM jammer PN distortion instantaneous frequency |
| title | AM-FM Interference Excision in Spread Spectrum Communications via Projection Filtering |
| title_full | AM-FM Interference Excision in Spread Spectrum Communications via Projection Filtering |
| title_fullStr | AM-FM Interference Excision in Spread Spectrum Communications via Projection Filtering |
| title_full_unstemmed | AM-FM Interference Excision in Spread Spectrum Communications via Projection Filtering |
| title_short | AM-FM Interference Excision in Spread Spectrum Communications via Projection Filtering |
| title_sort | am fm interference excision in spread spectrum communications via projection filtering |
| topic | projection filtering spread spectrum AM-FM jammer PN distortion instantaneous frequency |
| url | http://dx.doi.org/10.1155/S1110865701000257 |
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