Broadband Frost Adaptive Array Antenna with a Farrow Delay Filter
In a broadband adaptive array antenna with a space-time filter, a delay filter is required before digital beamforming when the Frost algorithm is used to obtain the weight vector. In this paper, we propose a Farrow structure instead of a direct form FIR structure to implement the time delay filter s...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2018-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2018/3574929 |
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| _version_ | 1832552967095451648 |
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| author | Tao Dong Qiushi Wang Yunxiao Zhao Lixia Ji Hao Zeng |
| author_facet | Tao Dong Qiushi Wang Yunxiao Zhao Lixia Ji Hao Zeng |
| author_sort | Tao Dong |
| collection | DOAJ |
| description | In a broadband adaptive array antenna with a space-time filter, a delay filter is required before digital beamforming when the Frost algorithm is used to obtain the weight vector. In this paper, we propose a Farrow structure instead of a direct form FIR structure to implement the time delay filter since it can satisfy the demand for real-time update and is very suited for the FPGA platform. Furthermore, a new off-line algorithm to calculate the Farrow filter coefficient is presented if the filter coefficient is symmetric. Finally, simulations are presented to illustrate that the design methodology for the Farrow filter is correct. The simulations also prove that the Frost broadband adaptive antenna effectively mitigates the interferences with a Farrow filter. |
| format | Article |
| id | doaj-art-21208866a7a94a008f13461ff375c860 |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-21208866a7a94a008f13461ff375c8602025-02-03T05:57:10ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772018-01-01201810.1155/2018/35749293574929Broadband Frost Adaptive Array Antenna with a Farrow Delay FilterTao Dong0Qiushi Wang1Yunxiao Zhao2Lixia Ji3Hao Zeng4State Key Laboratory of Space-Ground Integrated Information Technology, Beijing 100095, ChinaCollege of Communication Engineering, University of Chongqing, Shazheng Street 174, Chongqing 400044, ChinaCollege of Communication Engineering, University of Chongqing, Shazheng Street 174, Chongqing 400044, ChinaCollege of Communication Engineering, University of Chongqing, Shazheng Street 174, Chongqing 400044, ChinaCollege of Communication Engineering, University of Chongqing, Shazheng Street 174, Chongqing 400044, ChinaIn a broadband adaptive array antenna with a space-time filter, a delay filter is required before digital beamforming when the Frost algorithm is used to obtain the weight vector. In this paper, we propose a Farrow structure instead of a direct form FIR structure to implement the time delay filter since it can satisfy the demand for real-time update and is very suited for the FPGA platform. Furthermore, a new off-line algorithm to calculate the Farrow filter coefficient is presented if the filter coefficient is symmetric. Finally, simulations are presented to illustrate that the design methodology for the Farrow filter is correct. The simulations also prove that the Frost broadband adaptive antenna effectively mitigates the interferences with a Farrow filter.http://dx.doi.org/10.1155/2018/3574929 |
| spellingShingle | Tao Dong Qiushi Wang Yunxiao Zhao Lixia Ji Hao Zeng Broadband Frost Adaptive Array Antenna with a Farrow Delay Filter International Journal of Antennas and Propagation |
| title | Broadband Frost Adaptive Array Antenna with a Farrow Delay Filter |
| title_full | Broadband Frost Adaptive Array Antenna with a Farrow Delay Filter |
| title_fullStr | Broadband Frost Adaptive Array Antenna with a Farrow Delay Filter |
| title_full_unstemmed | Broadband Frost Adaptive Array Antenna with a Farrow Delay Filter |
| title_short | Broadband Frost Adaptive Array Antenna with a Farrow Delay Filter |
| title_sort | broadband frost adaptive array antenna with a farrow delay filter |
| url | http://dx.doi.org/10.1155/2018/3574929 |
| work_keys_str_mv | AT taodong broadbandfrostadaptivearrayantennawithafarrowdelayfilter AT qiushiwang broadbandfrostadaptivearrayantennawithafarrowdelayfilter AT yunxiaozhao broadbandfrostadaptivearrayantennawithafarrowdelayfilter AT lixiaji broadbandfrostadaptivearrayantennawithafarrowdelayfilter AT haozeng broadbandfrostadaptivearrayantennawithafarrowdelayfilter |