Echo Signal Enhancement for ESPRIT to Estimate Angles of Arrival by Virtually Overlapped Subarray Decomposition in ADAS Radar Systems
Angle of arrival (AoA) for target echo signal detection is crucial in vehicular radar systems, where the estimation of signal parameters via rotational invariance (ESPRIT) provides a high-resolution estimation. A subarray decomposition strategy is presented in this article to create two ESPRIT anten...
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| Veröffentlicht in: | IEEE transactions on antennas and propagation 2022-10, Vol.70 (10), p.9775-9784 |
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| container_title | IEEE transactions on antennas and propagation |
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| creator | Chou, Hsi-Tseng Ho, Shih-Kai Hung, Wei-Ping |
| description | Angle of arrival (AoA) for target echo signal detection is crucial in vehicular radar systems, where the estimation of signal parameters via rotational invariance (ESPRIT) provides a high-resolution estimation. A subarray decomposition strategy is presented in this article to create two ESPRIT antenna arrays with enhanced echo signal strengths, applicable to multi-input-multioutput (MIMO) operations for creating a large virtual array. The concept intends to maximize the echo signal's strength with minimum signal interferences by increasing the aperture sizes of the two ESPRIT antenna arrays. The decomposition produces two virtually overlapped subarrays to increase the subarray aperture sizes in the spatial or spectral representations. It is applied to the MIMO-based arrays for two-way radiation patterns for ESPRIT estimation of AoA. Numerical simulation examples are shown to validate the feasibility and demonstrate the applications. |
| doi_str_mv | 10.1109/TAP.2022.3181011 |
| format | Article |
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A subarray decomposition strategy is presented in this article to create two ESPRIT antenna arrays with enhanced echo signal strengths, applicable to multi-input-multioutput (MIMO) operations for creating a large virtual array. The concept intends to maximize the echo signal's strength with minimum signal interferences by increasing the aperture sizes of the two ESPRIT antenna arrays. The decomposition produces two virtually overlapped subarrays to increase the subarray aperture sizes in the spatial or spectral representations. It is applied to the MIMO-based arrays for two-way radiation patterns for ESPRIT estimation of AoA. 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(IEEE) 2022</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c221t-125335ebdf104573323227f15af17dc02bbe00ebe612028d9451b4bf3b90c78c3</citedby><cites>FETCH-LOGICAL-c221t-125335ebdf104573323227f15af17dc02bbe00ebe612028d9451b4bf3b90c78c3</cites><orcidid>0000-0002-1883-9782</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/9794919$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,776,780,792,27901,27902,54733</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/9794919$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Chou, Hsi-Tseng</creatorcontrib><creatorcontrib>Ho, Shih-Kai</creatorcontrib><creatorcontrib>Hung, Wei-Ping</creatorcontrib><title>Echo Signal Enhancement for ESPRIT to Estimate Angles of Arrival by Virtually Overlapped Subarray Decomposition in ADAS Radar Systems</title><title>IEEE transactions on antennas and propagation</title><addtitle>TAP</addtitle><description>Angle of arrival (AoA) for target echo signal detection is crucial in vehicular radar systems, where the estimation of signal parameters via rotational invariance (ESPRIT) provides a high-resolution estimation. A subarray decomposition strategy is presented in this article to create two ESPRIT antenna arrays with enhanced echo signal strengths, applicable to multi-input-multioutput (MIMO) operations for creating a large virtual array. The concept intends to maximize the echo signal's strength with minimum signal interferences by increasing the aperture sizes of the two ESPRIT antenna arrays. The decomposition produces two virtually overlapped subarrays to increase the subarray aperture sizes in the spatial or spectral representations. It is applied to the MIMO-based arrays for two-way radiation patterns for ESPRIT estimation of AoA. Numerical simulation examples are shown to validate the feasibility and demonstrate the applications.</description><subject>Angle of arrival</subject><subject>Angle of arrival (AoA) estimation</subject><subject>Antenna arrays</subject><subject>Antenna radiation patterns</subject><subject>Antennas</subject><subject>Apertures</subject><subject>Array signal processing</subject><subject>Decomposition</subject><subject>Estimation</subject><subject>estimation of signal parameters via rotational invariance (ESPRIT) algorithm</subject><subject>Gratings</subject><subject>Manganese</subject><subject>MIMO communication</subject><subject>Phased arrays</subject><subject>Radar equipment</subject><subject>radar system</subject><subject>Signal detection</subject><subject>Target detection</subject><subject>vehicular anticollision</subject><issn>0018-926X</issn><issn>1558-2221</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kEFL5TAUhYOM4Bt1L7i5MOu-yU0a2y6LVkcQFPtmcFeS9lYrfU0nyRP6A_zfRp64ulw434HzMXaGfI3Ii9-b8mEtuBBriTlyxAO2QqXyRAiBP9iKc8yTQlw8HbGf3r_GN83TdMXeq_bFQj08T3qEanrRU0tbmgL01kFVPzzebiBYqHwYtjoQlNPzSB5sD6Vzw1uEzAL_Bhd2ehwXuH8jN-p5pg7qndHO6QWuqLXb2fohDHaCYYLyqqzhUXfaQb34QFt_wg57PXo6_brH7O91tbn8k9zd39xelndJG1eEBIWSUpHpeuSpyqQUUoisR6V7zLqWC2OIczJ0gVFF3hWpQpOaXpqCt1neymP2a987O_t_Rz40r3bn4nTfiEymMs-VUjHF96nWWe8d9c3s4nq3NMibT9lNlN18ym6-ZEfkfI8MRPQdL7IiLbCQHy7MeqI</recordid><startdate>20221001</startdate><enddate>20221001</enddate><creator>Chou, Hsi-Tseng</creator><creator>Ho, Shih-Kai</creator><creator>Hung, Wei-Ping</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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A subarray decomposition strategy is presented in this article to create two ESPRIT antenna arrays with enhanced echo signal strengths, applicable to multi-input-multioutput (MIMO) operations for creating a large virtual array. The concept intends to maximize the echo signal's strength with minimum signal interferences by increasing the aperture sizes of the two ESPRIT antenna arrays. The decomposition produces two virtually overlapped subarrays to increase the subarray aperture sizes in the spatial or spectral representations. It is applied to the MIMO-based arrays for two-way radiation patterns for ESPRIT estimation of AoA. Numerical simulation examples are shown to validate the feasibility and demonstrate the applications.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/TAP.2022.3181011</doi><tpages>10</tpages><orcidid>https://orcid.org/0000-0002-1883-9782</orcidid></addata></record> |
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| subjects | Angle of arrival Angle of arrival (AoA) estimation Antenna arrays Antenna radiation patterns Antennas Apertures Array signal processing Decomposition Estimation estimation of signal parameters via rotational invariance (ESPRIT) algorithm Gratings Manganese MIMO communication Phased arrays Radar equipment radar system Signal detection Target detection vehicular anticollision |
| title | Echo Signal Enhancement for ESPRIT to Estimate Angles of Arrival by Virtually Overlapped Subarray Decomposition in ADAS Radar Systems |
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