Designing Unimodular Waveform with Low Range Sidelobes and Stopband for Cognitive Radar via Relaxed Alternating Projection
Cognitive radar could adapt the spectrum of waveforms in response to information regarding the changing environment, so as to avoid narrowband interference or electronic jamming. Besides stopband constraints, low range sidelobes and unimodular property are also desired. In this paper, we propose a S...
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/10.1155/2016/6280508 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832558710064414720 |
|---|---|
| author | Xiang Feng Yang-chun Song Zhi-quan Zhou Yi-nan Zhao |
| author_facet | Xiang Feng Yang-chun Song Zhi-quan Zhou Yi-nan Zhao |
| author_sort | Xiang Feng |
| collection | DOAJ |
| description | Cognitive radar could adapt the spectrum of waveforms in response to information regarding the changing environment, so as to avoid narrowband interference or electronic jamming. Besides stopband constraints, low range sidelobes and unimodular property are also desired. In this paper, we propose a Spectral Approximation Relaxed Alternating Projection (SARAP) method, to synthesize unimodular waveform with low range sidelobes and spectral power suppressed. This novel method, based on phase retrieval and relaxed alternating projection, could convert the correlation optimization into the spectrum approximation via the Fast Fourier Transform (FFT). Moreover, by virtue of the relaxation factor and accelerated factor, SARAP can exploit local area and more likely converge to the global solution. Numerical trials have demonstrated that SARAP could achieve excellent performance and computational efficiency which will facilitate the real-time design. |
| format | Article |
| id | doaj-art-2ac0675a14214fc3add3789050cb9389 |
| 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-2ac0675a14214fc3add3789050cb93892025-02-03T01:31:45ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772016-01-01201610.1155/2016/62805086280508Designing Unimodular Waveform with Low Range Sidelobes and Stopband for Cognitive Radar via Relaxed Alternating ProjectionXiang Feng0Yang-chun Song1Zhi-quan Zhou2Yi-nan Zhao3School of Electronics and Information Engineering, Harbin Institute of Technology, No. 92 West Dazhi Street, Nan Gang District, Harbin, Heilongjiang 150001, ChinaSchool of Electronics and Information Engineering, Harbin Institute of Technology, No. 92 West Dazhi Street, Nan Gang District, Harbin, Heilongjiang 150001, ChinaSchool of Electronics and Information Engineering, Harbin Institute of Technology, No. 92 West Dazhi Street, Nan Gang District, Harbin, Heilongjiang 150001, ChinaSchool of Electronics and Information Engineering, Harbin Institute of Technology, No. 92 West Dazhi Street, Nan Gang District, Harbin, Heilongjiang 150001, ChinaCognitive radar could adapt the spectrum of waveforms in response to information regarding the changing environment, so as to avoid narrowband interference or electronic jamming. Besides stopband constraints, low range sidelobes and unimodular property are also desired. In this paper, we propose a Spectral Approximation Relaxed Alternating Projection (SARAP) method, to synthesize unimodular waveform with low range sidelobes and spectral power suppressed. This novel method, based on phase retrieval and relaxed alternating projection, could convert the correlation optimization into the spectrum approximation via the Fast Fourier Transform (FFT). Moreover, by virtue of the relaxation factor and accelerated factor, SARAP can exploit local area and more likely converge to the global solution. Numerical trials have demonstrated that SARAP could achieve excellent performance and computational efficiency which will facilitate the real-time design.http://dx.doi.org/10.1155/2016/6280508 |
| spellingShingle | Xiang Feng Yang-chun Song Zhi-quan Zhou Yi-nan Zhao Designing Unimodular Waveform with Low Range Sidelobes and Stopband for Cognitive Radar via Relaxed Alternating Projection International Journal of Antennas and Propagation |
| title | Designing Unimodular Waveform with Low Range Sidelobes and Stopband for Cognitive Radar via Relaxed Alternating Projection |
| title_full | Designing Unimodular Waveform with Low Range Sidelobes and Stopband for Cognitive Radar via Relaxed Alternating Projection |
| title_fullStr | Designing Unimodular Waveform with Low Range Sidelobes and Stopband for Cognitive Radar via Relaxed Alternating Projection |
| title_full_unstemmed | Designing Unimodular Waveform with Low Range Sidelobes and Stopband for Cognitive Radar via Relaxed Alternating Projection |
| title_short | Designing Unimodular Waveform with Low Range Sidelobes and Stopband for Cognitive Radar via Relaxed Alternating Projection |
| title_sort | designing unimodular waveform with low range sidelobes and stopband for cognitive radar via relaxed alternating projection |
| url | http://dx.doi.org/10.1155/2016/6280508 |
| work_keys_str_mv | AT xiangfeng designingunimodularwaveformwithlowrangesidelobesandstopbandforcognitiveradarviarelaxedalternatingprojection AT yangchunsong designingunimodularwaveformwithlowrangesidelobesandstopbandforcognitiveradarviarelaxedalternatingprojection AT zhiquanzhou designingunimodularwaveformwithlowrangesidelobesandstopbandforcognitiveradarviarelaxedalternatingprojection AT yinanzhao designingunimodularwaveformwithlowrangesidelobesandstopbandforcognitiveradarviarelaxedalternatingprojection |