A Generalized Oblique Projection Filter with Flexible Parameter for Interference Suppression
A generalized oblique projection (GOP) with an adjustable parameter defined as interference suppression cost (ISC) is proposed. Therefore, an optional optimized signal to interference-plus-noise ratio (SINR) and user controlled actions on the interference filtering are presented in this GOP framewor...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2015-01-01
|
| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2015/320769 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832567049598009344 |
|---|---|
| author | Yi-ming Wang Xing-peng Mao Hong Hong Jie Zhang Yu-mei Cui |
| author_facet | Yi-ming Wang Xing-peng Mao Hong Hong Jie Zhang Yu-mei Cui |
| author_sort | Yi-ming Wang |
| collection | DOAJ |
| description | A generalized oblique projection (GOP) with an adjustable parameter defined as interference suppression cost (ISC) is proposed. Therefore, an optional optimized signal to interference-plus-noise ratio (SINR) and user controlled actions on the interference filtering are presented in this GOP framework. Theoretical analysis and numerical simulation demonstrate that when the ISC is derived from minimum variance distortionless response (MVDR) algorithm, the SINR performance of GOP filter is better than both MVDR and oblique projection (OP) filters. Further, an application of GOP filter in ionospheric clutter cancellation in a high frequency surface wave radar (HFSWR) system is given. The ISC is designed specifically to introduce an extra coherent loss to the clutters and a satisfying clutter suppression result is achieved. Besides the examples given, more designs of GOP filter can be inspired by the flexibility of ISC. As a generalized form of OP filter, GOP filter expands the connotation of oblique projection based technique and could be used in spatial filtering, polarization filtering, and other array signal processing applications. |
| format | Article |
| id | doaj-art-a8c8fc86d59a4edb8045c4eb955009c0 |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-a8c8fc86d59a4edb8045c4eb955009c02025-02-03T01:02:26ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772015-01-01201510.1155/2015/320769320769A Generalized Oblique Projection Filter with Flexible Parameter for Interference SuppressionYi-ming Wang0Xing-peng Mao1Hong Hong2Jie Zhang3Yu-mei Cui4School of Electronics and Information Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150001, ChinaSchool of Electronics and Information Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150001, ChinaSchool of Electronics and Information Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150001, ChinaThe First Institute of Oceanography, SOA, Qing Dao, Shandong 266061, ChinaSchool of Electronics and Information Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150001, ChinaA generalized oblique projection (GOP) with an adjustable parameter defined as interference suppression cost (ISC) is proposed. Therefore, an optional optimized signal to interference-plus-noise ratio (SINR) and user controlled actions on the interference filtering are presented in this GOP framework. Theoretical analysis and numerical simulation demonstrate that when the ISC is derived from minimum variance distortionless response (MVDR) algorithm, the SINR performance of GOP filter is better than both MVDR and oblique projection (OP) filters. Further, an application of GOP filter in ionospheric clutter cancellation in a high frequency surface wave radar (HFSWR) system is given. The ISC is designed specifically to introduce an extra coherent loss to the clutters and a satisfying clutter suppression result is achieved. Besides the examples given, more designs of GOP filter can be inspired by the flexibility of ISC. As a generalized form of OP filter, GOP filter expands the connotation of oblique projection based technique and could be used in spatial filtering, polarization filtering, and other array signal processing applications.http://dx.doi.org/10.1155/2015/320769 |
| spellingShingle | Yi-ming Wang Xing-peng Mao Hong Hong Jie Zhang Yu-mei Cui A Generalized Oblique Projection Filter with Flexible Parameter for Interference Suppression International Journal of Antennas and Propagation |
| title | A Generalized Oblique Projection Filter with Flexible Parameter for Interference Suppression |
| title_full | A Generalized Oblique Projection Filter with Flexible Parameter for Interference Suppression |
| title_fullStr | A Generalized Oblique Projection Filter with Flexible Parameter for Interference Suppression |
| title_full_unstemmed | A Generalized Oblique Projection Filter with Flexible Parameter for Interference Suppression |
| title_short | A Generalized Oblique Projection Filter with Flexible Parameter for Interference Suppression |
| title_sort | generalized oblique projection filter with flexible parameter for interference suppression |
| url | http://dx.doi.org/10.1155/2015/320769 |
| work_keys_str_mv | AT yimingwang ageneralizedobliqueprojectionfilterwithflexibleparameterforinterferencesuppression AT xingpengmao ageneralizedobliqueprojectionfilterwithflexibleparameterforinterferencesuppression AT honghong ageneralizedobliqueprojectionfilterwithflexibleparameterforinterferencesuppression AT jiezhang ageneralizedobliqueprojectionfilterwithflexibleparameterforinterferencesuppression AT yumeicui ageneralizedobliqueprojectionfilterwithflexibleparameterforinterferencesuppression AT yimingwang generalizedobliqueprojectionfilterwithflexibleparameterforinterferencesuppression AT xingpengmao generalizedobliqueprojectionfilterwithflexibleparameterforinterferencesuppression AT honghong generalizedobliqueprojectionfilterwithflexibleparameterforinterferencesuppression AT jiezhang generalizedobliqueprojectionfilterwithflexibleparameterforinterferencesuppression AT yumeicui generalizedobliqueprojectionfilterwithflexibleparameterforinterferencesuppression |