Group delay engineering using cascaded all pass filters for wideband chirp waveform generation
In this paper a second order all pass filter (APF) is designed and analyzed for its potential application for wideband chirp waveform generation. The group delay of a single stage APF varies with frequency within a narrow band and remains flat elsewhere. Furthermore, it has been found that the compo...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Conference Paper |
| Language: | English |
| Published: |
2014
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| Online Access: | https://hdl.handle.net/10356/103014 http://hdl.handle.net/10220/19045 |
| _version_ | 1826122525744037888 |
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| author | Bose, Sumanta Vinoy, K. J. |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Bose, Sumanta Vinoy, K. J. |
| author_sort | Bose, Sumanta |
| collection | NTU |
| description | In this paper a second order all pass filter (APF) is designed and analyzed for its potential application for wideband chirp waveform generation. The group delay of a single stage APF varies with frequency within a narrow band and remains flat elsewhere. Furthermore, it has been found that the component values have a great role in the group delay response of the APF. A two stage cascaded second order APF is adopted to enhance the group delay over a wider band. Genetic algorithm is used to optimize the design parameters of the individual APF stages to obtain a smooth and monotonically increasing group delay response while ensuring good input return loss characteristics. This design approach can be used for generating wideband chirp waveforms that have potential applications in radar, sonar and imaging, delivering improved range resolution. |
| first_indexed | 2024-10-01T05:49:35Z |
| format | Conference Paper |
| id | ntu-10356/103014 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:49:35Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | ntu-10356/1030142020-03-07T13:24:51Z Group delay engineering using cascaded all pass filters for wideband chirp waveform generation Bose, Sumanta Vinoy, K. J. School of Electrical and Electronic Engineering IEEE International Conference on Electronics, Computing and Communication Technologies (CONECCT) (Annual : 2013) DRNTU::Engineering::Electrical and electronic engineering::Wireless communication systems In this paper a second order all pass filter (APF) is designed and analyzed for its potential application for wideband chirp waveform generation. The group delay of a single stage APF varies with frequency within a narrow band and remains flat elsewhere. Furthermore, it has been found that the component values have a great role in the group delay response of the APF. A two stage cascaded second order APF is adopted to enhance the group delay over a wider band. Genetic algorithm is used to optimize the design parameters of the individual APF stages to obtain a smooth and monotonically increasing group delay response while ensuring good input return loss characteristics. This design approach can be used for generating wideband chirp waveforms that have potential applications in radar, sonar and imaging, delivering improved range resolution. Accepted version 2014-03-31T02:32:03Z 2019-12-06T21:03:59Z 2014-03-31T02:32:03Z 2019-12-06T21:03:59Z 2013 2013 Conference Paper Bose, S., & Vinoy, K.J. (2013). Group delay engineering using cascaded all pass filters for wideband chirp waveform generation. 2013 IEEE International Conference on Electronics, Computing and Communication Technologies (CONECCT), pp.1-5. https://hdl.handle.net/10356/103014 http://hdl.handle.net/10220/19045 10.1109/CONECCT.2013.6469308 en © 2013 Institute of Electrical and Electronics Engineers (IEEE). This is the author created version of a work that has been peer reviewed and accepted for publication by 2013 IEEE International Conference on Electronics, Computing and Communication Technologies (CONECCT), Institute of Electrical and Electronics Engineers (IEEE). It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [DOI: http://dx.doi.org/10.1109/CONECCT.2013.6469308]. 6 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering::Wireless communication systems Bose, Sumanta Vinoy, K. J. Group delay engineering using cascaded all pass filters for wideband chirp waveform generation |
| title | Group delay engineering using cascaded all pass filters for wideband chirp waveform generation |
| title_full | Group delay engineering using cascaded all pass filters for wideband chirp waveform generation |
| title_fullStr | Group delay engineering using cascaded all pass filters for wideband chirp waveform generation |
| title_full_unstemmed | Group delay engineering using cascaded all pass filters for wideband chirp waveform generation |
| title_short | Group delay engineering using cascaded all pass filters for wideband chirp waveform generation |
| title_sort | group delay engineering using cascaded all pass filters for wideband chirp waveform generation |
| topic | DRNTU::Engineering::Electrical and electronic engineering::Wireless communication systems |
| url | https://hdl.handle.net/10356/103014 http://hdl.handle.net/10220/19045 |
| work_keys_str_mv | AT bosesumanta groupdelayengineeringusingcascadedallpassfiltersforwidebandchirpwaveformgeneration AT vinoykj groupdelayengineeringusingcascadedallpassfiltersforwidebandchirpwaveformgeneration |