Fast algorithm for designing unimodular sequence and related mismatched filter with flexible correlation properties
Unimodular (i.e. constant modulus) sequences with good correlation properties are useful in many areas like communication and radar/sonar. However, several algorithms for designing unimodular sequences with the minimisation of correlation sidelobes, which usually cost a lot of calculation time and h...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2019-07-01
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| Series: | The Journal of Engineering |
| Subjects: | |
| Online Access: | https://digital-library.theiet.org/content/journals/10.1049/joe.2019.0309 |
| _version_ | 1831587038489477120 |
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| author | Yinghao Sun Quanhua Liu Jinjian Cai Teng Long |
| author_facet | Yinghao Sun Quanhua Liu Jinjian Cai Teng Long |
| author_sort | Yinghao Sun |
| collection | DOAJ |
| description | Unimodular (i.e. constant modulus) sequences with good correlation properties are useful in many areas like communication and radar/sonar. However, several algorithms for designing unimodular sequences with the minimisation of correlation sidelobes, which usually cost a lot of calculation time and hardware resources, are not suitable for real-time applications. Here, a fast algorithm, the inversion of the shaped output with a mismatched filter (ISO-MMF), is proposed to suppress correlation sidelobes to the designed level over specified regions. The closed-form solution is presented to give a fast implementation without thousands of iterations. Several experiments are also conducted to illustrate the effectiveness and efficiency of the proposed method. The theoretical evaluation and experiments show that the proposed ISO-MMF significantly improves the effectiveness of minimising correlation sidelobes and yields better results than existing methods. |
| first_indexed | 2024-12-17T21:47:45Z |
| format | Article |
| id | doaj.art-7f62082b8ec9467a94e093984006e5dc |
| institution | Directory Open Access Journal |
| issn | 2051-3305 |
| language | English |
| last_indexed | 2024-12-17T21:47:45Z |
| publishDate | 2019-07-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Journal of Engineering |
| spelling | doaj.art-7f62082b8ec9467a94e093984006e5dc2022-12-21T21:31:24ZengWileyThe Journal of Engineering2051-33052019-07-0110.1049/joe.2019.0309JOE.2019.0309Fast algorithm for designing unimodular sequence and related mismatched filter with flexible correlation propertiesYinghao Sun0Quanhua Liu1Jinjian Cai2Teng Long3Beijing Institute of TechnologyBeijing Institute of TechnologyBeijing Institute of TechnologyBeijing Institute of TechnologyUnimodular (i.e. constant modulus) sequences with good correlation properties are useful in many areas like communication and radar/sonar. However, several algorithms for designing unimodular sequences with the minimisation of correlation sidelobes, which usually cost a lot of calculation time and hardware resources, are not suitable for real-time applications. Here, a fast algorithm, the inversion of the shaped output with a mismatched filter (ISO-MMF), is proposed to suppress correlation sidelobes to the designed level over specified regions. The closed-form solution is presented to give a fast implementation without thousands of iterations. Several experiments are also conducted to illustrate the effectiveness and efficiency of the proposed method. The theoretical evaluation and experiments show that the proposed ISO-MMF significantly improves the effectiveness of minimising correlation sidelobes and yields better results than existing methods.https://digital-library.theiet.org/content/journals/10.1049/joe.2019.0309sequencescorrelation methodsfiltering theoryiterative methodsminimisationcommunicationhardware resourcescorrelation propertiesradar-sonarcorrelation sidelobe minimisationunimodular sequence design algorithmISO-MMFinversion of the shaped output with a mismatched filter |
| spellingShingle | Yinghao Sun Quanhua Liu Jinjian Cai Teng Long Fast algorithm for designing unimodular sequence and related mismatched filter with flexible correlation properties The Journal of Engineering sequences correlation methods filtering theory iterative methods minimisation communication hardware resources correlation properties radar-sonar correlation sidelobe minimisation unimodular sequence design algorithm ISO-MMF inversion of the shaped output with a mismatched filter |
| title | Fast algorithm for designing unimodular sequence and related mismatched filter with flexible correlation properties |
| title_full | Fast algorithm for designing unimodular sequence and related mismatched filter with flexible correlation properties |
| title_fullStr | Fast algorithm for designing unimodular sequence and related mismatched filter with flexible correlation properties |
| title_full_unstemmed | Fast algorithm for designing unimodular sequence and related mismatched filter with flexible correlation properties |
| title_short | Fast algorithm for designing unimodular sequence and related mismatched filter with flexible correlation properties |
| title_sort | fast algorithm for designing unimodular sequence and related mismatched filter with flexible correlation properties |
| topic | sequences correlation methods filtering theory iterative methods minimisation communication hardware resources correlation properties radar-sonar correlation sidelobe minimisation unimodular sequence design algorithm ISO-MMF inversion of the shaped output with a mismatched filter |
| url | https://digital-library.theiet.org/content/journals/10.1049/joe.2019.0309 |
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