Time-frequency represetation of radar signals using Doppler-lag block searching Wigner-Ville distribution
Radar signals are time-varying signals where the signal parameters change over time. For these signals, Quadratic Time-Frequency Distribution (QTFD) offers advantages over classical spectrum estimation in terms of frequency and time resolution but it suffers heavily from cross-terms. In generating a...
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| التنسيق: | مقال |
| اللغة: | English |
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VSB-Technical University of Ostrava
2018
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| الوصول للمادة أونلاين: | http://eprints.utm.my/id/eprint/79881/1/MuhammadNoorHamdi2018_TimeFrequencyRepresetationofRadarSignals.pdf http://eprints.utm.my/id/eprint/79881/ http://dx.doi.org/10.15598/aeee.v16i3.2633 |
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my.utm.798812019-01-28T06:58:40Z http://eprints.utm.my/id/eprint/79881/ Time-frequency represetation of radar signals using Doppler-lag block searching Wigner-Ville distribution Hamdi, M. N. M. Sha'Ameri, A. Z. TK Electrical engineering. Electronics Nuclear engineering Radar signals are time-varying signals where the signal parameters change over time. For these signals, Quadratic Time-Frequency Distribution (QTFD) offers advantages over classical spectrum estimation in terms of frequency and time resolution but it suffers heavily from cross-terms. In generating accurate Time-Frequency Representation (TFR), a kernel function must be able to suppress crossterms while maintaining auto-terms energy especially in a non-cooperative environment where the parameters of the actual signal are unknown. Thus, a new signaldependent QTFD is proposed that adaptively estimates the kernel parameters for a wide class of radar signals. The adaptive procedure, Doppler-Lag Block Searching (DLBS) kernel estimation was developed to serve this purpose. Accurate TFRs produced for all simulated radar signals with Instantaneous Frequency (IF) estimation performance are verified using Monte Carlo simulation meeting the requirements of the Cramer-Rao Lower Bound (CRLB) at SNR > 6 dB. VSB-Technical University of Ostrava 2018 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/79881/1/MuhammadNoorHamdi2018_TimeFrequencyRepresetationofRadarSignals.pdf Hamdi, M. N. M. and Sha'Ameri, A. Z. (2018) Time-frequency represetation of radar signals using Doppler-lag block searching Wigner-Ville distribution. Advances in Electrical and Electronic Engineering, 6 (3). pp. 318-313. ISSN 1336-1376 http://dx.doi.org/10.15598/aeee.v16i3.2633 DOI:10.15598/aeee.v16i3.2633 |
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| language |
English |
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TK Electrical engineering. Electronics Nuclear engineering |
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TK Electrical engineering. Electronics Nuclear engineering Hamdi, M. N. M. Sha'Ameri, A. Z. Time-frequency represetation of radar signals using Doppler-lag block searching Wigner-Ville distribution |
| description |
Radar signals are time-varying signals where the signal parameters change over time. For these signals, Quadratic Time-Frequency Distribution (QTFD) offers advantages over classical spectrum estimation in terms of frequency and time resolution but it suffers heavily from cross-terms. In generating accurate Time-Frequency Representation (TFR), a kernel function must be able to suppress crossterms while maintaining auto-terms energy especially in a non-cooperative environment where the parameters of the actual signal are unknown. Thus, a new signaldependent QTFD is proposed that adaptively estimates the kernel parameters for a wide class of radar signals. The adaptive procedure, Doppler-Lag Block Searching (DLBS) kernel estimation was developed to serve this purpose. Accurate TFRs produced for all simulated radar signals with Instantaneous Frequency (IF) estimation performance are verified using Monte Carlo simulation meeting the requirements of the Cramer-Rao Lower Bound (CRLB) at SNR > 6 dB. |
| format |
Article |
| author |
Hamdi, M. N. M. Sha'Ameri, A. Z. |
| author_facet |
Hamdi, M. N. M. Sha'Ameri, A. Z. |
| author_sort |
Hamdi, M. N. M. |
| title |
Time-frequency represetation of radar signals using Doppler-lag block searching Wigner-Ville distribution |
| title_short |
Time-frequency represetation of radar signals using Doppler-lag block searching Wigner-Ville distribution |
| title_full |
Time-frequency represetation of radar signals using Doppler-lag block searching Wigner-Ville distribution |
| title_fullStr |
Time-frequency represetation of radar signals using Doppler-lag block searching Wigner-Ville distribution |
| title_full_unstemmed |
Time-frequency represetation of radar signals using Doppler-lag block searching Wigner-Ville distribution |
| title_sort |
time-frequency represetation of radar signals using doppler-lag block searching wigner-ville distribution |
| publisher |
VSB-Technical University of Ostrava |
| publishDate |
2018 |
| url |
http://eprints.utm.my/id/eprint/79881/1/MuhammadNoorHamdi2018_TimeFrequencyRepresetationofRadarSignals.pdf http://eprints.utm.my/id/eprint/79881/ http://dx.doi.org/10.15598/aeee.v16i3.2633 |
| _version_ |
1643658320056156160 |
| score |
13.251813 |