Joint estimation of target time delay and Doppler frequency in passive radar system
A novel method of joint estimation of time delay and Doppler shift in passive radar system based on short-time fractional Fourier transform (STFRFT) was proposed.Firstly,the mathematical expression of the STFRFT time-frequency resolution was studied for the quantitative comparison.Secondly,based on...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2015-05-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2015124/ |
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| author | ANGPeng W IUTian-shuang Q IJing-chun L ANHai-feng T |
| author_facet | ANGPeng W IUTian-shuang Q IJing-chun L ANHai-feng T |
| author_sort | ANGPeng W |
| collection | DOAJ |
| description | A novel method of joint estimation of time delay and Doppler shift in passive radar system based on short-time fractional Fourier transform (STFRFT) was proposed.Firstly,the mathematical expression of the STFRFT time-frequency resolution was studied for the quantitative comparison.Secondly,based on the projection envelops of STFRFT,a new method to estimate the time delay and Doppler shift was put forward.Finally,the factors related with the estimation precision such as signal-to-noise ratio (SNR),parameters of Gaussian window were analyzed.The simulation results demonstrate that compared with the CAF based method,proposed method can get precise time delay and Doppler shift estimations with higher probability. |
| format | Article |
| id | doaj-art-d13a634e6ede49b3a2f691ea86550b13 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2015-05-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-d13a634e6ede49b3a2f691ea86550b132025-01-14T06:46:19ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2015-05-0136475559692861Joint estimation of target time delay and Doppler frequency in passive radar systemANGPeng WIUTian-shuang QIJing-chun LANHai-feng TA novel method of joint estimation of time delay and Doppler shift in passive radar system based on short-time fractional Fourier transform (STFRFT) was proposed.Firstly,the mathematical expression of the STFRFT time-frequency resolution was studied for the quantitative comparison.Secondly,based on the projection envelops of STFRFT,a new method to estimate the time delay and Doppler shift was put forward.Finally,the factors related with the estimation precision such as signal-to-noise ratio (SNR),parameters of Gaussian window were analyzed.The simulation results demonstrate that compared with the CAF based method,proposed method can get precise time delay and Doppler shift estimations with higher probability.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2015124/short-time fractional Fourier transformtime delayDoppler shiftpassive radar |
| spellingShingle | ANGPeng W IUTian-shuang Q IJing-chun L ANHai-feng T Joint estimation of target time delay and Doppler frequency in passive radar system Tongxin xuebao short-time fractional Fourier transform time delay Doppler shift passive radar |
| title | Joint estimation of target time delay and Doppler frequency in passive radar system |
| title_full | Joint estimation of target time delay and Doppler frequency in passive radar system |
| title_fullStr | Joint estimation of target time delay and Doppler frequency in passive radar system |
| title_full_unstemmed | Joint estimation of target time delay and Doppler frequency in passive radar system |
| title_short | Joint estimation of target time delay and Doppler frequency in passive radar system |
| title_sort | joint estimation of target time delay and doppler frequency in passive radar system |
| topic | short-time fractional Fourier transform time delay Doppler shift passive radar |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2015124/ |
| work_keys_str_mv | AT angpengw jointestimationoftargettimedelayanddopplerfrequencyinpassiveradarsystem AT iutianshuangq jointestimationoftargettimedelayanddopplerfrequencyinpassiveradarsystem AT ijingchunl jointestimationoftargettimedelayanddopplerfrequencyinpassiveradarsystem AT anhaifengt jointestimationoftargettimedelayanddopplerfrequencyinpassiveradarsystem |