Asynchronous WAM with Irregular Pulse Repetition
Radiolocation systems for aviation based on Multi-Lateration (MLAT) typically use a set of synchronised ground sensors to receive radio signals broadcast by onboard transmitters. In most cases, the sensor synchronisation in Wide Area Multi-Lateration Systems (WAM) is provided by Global Navigation Sa...
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| Veröffentlicht in: | Journal of navigation 2019-01, Vol.72 (1), p.85-100 |
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| container_title | Journal of navigation |
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| creator | Sadowski, Jaroslaw Stefanski, Jacek |
| description | Radiolocation systems for aviation based on Multi-Lateration (MLAT) typically use a set of synchronised ground sensors to receive radio signals broadcast by onboard transmitters. In most cases, the sensor synchronisation in Wide Area Multi-Lateration Systems (WAM) is provided by Global Navigation Satellite System (GNSS) receivers. However, in the case of synchronisation failure, there is still a possibility to estimate the coordinates of the tracked aircraft by using the measurements of the time of arrival taken by non-synchronised sensors. The article presents the principle of operation and equations for calculating the coordinates of an aircraft in an asynchronous multi-lateration system, together with the results of a computer simulation allowing comparison of the accuracy of position estimation between the asynchronous and the typical, synchronous MLAT. This paper contains also some comments on the required stability of the clock source for the sensors working in an asynchronous MLAT system. |
| doi_str_mv | 10.1017/S0373463318000607 |
| format | Article |
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In most cases, the sensor synchronisation in Wide Area Multi-Lateration Systems (WAM) is provided by Global Navigation Satellite System (GNSS) receivers. However, in the case of synchronisation failure, there is still a possibility to estimate the coordinates of the tracked aircraft by using the measurements of the time of arrival taken by non-synchronised sensors. The article presents the principle of operation and equations for calculating the coordinates of an aircraft in an asynchronous multi-lateration system, together with the results of a computer simulation allowing comparison of the accuracy of position estimation between the asynchronous and the typical, synchronous MLAT. This paper contains also some comments on the required stability of the clock source for the sensors working in an asynchronous MLAT system.</description><identifier>ISSN: 0373-4633</identifier><identifier>EISSN: 1469-7785</identifier><identifier>DOI: 10.1017/S0373463318000607</identifier><language>eng</language><publisher>Cambridge, UK: Cambridge University Press</publisher><subject>Accuracy ; Air traffic control ; Aircraft ; Aviation ; Clocks & watches ; Computer simulation ; Crystal oscillators ; Global navigation satellite system ; Global positioning systems ; GPS ; Ground stations ; Navigation ; Navigation satellites ; Radar ; Radio broadcasting ; Radio signals ; Receivers & amplifiers ; Satellites ; Sensors ; Stability ; Surveillance ; Time synchronization ; Traffic congestion ; Transmitters</subject><ispartof>Journal of navigation, 2019-01, Vol.72 (1), p.85-100</ispartof><rights>Copyright © The Royal Institute of Navigation 2018</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c317t-a480ff2a9fad64522bec185b5a1928c57dd37c025d9be18cec3acbd09db4ae033</citedby><cites>FETCH-LOGICAL-c317t-a480ff2a9fad64522bec185b5a1928c57dd37c025d9be18cec3acbd09db4ae033</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.cambridge.org/core/product/identifier/S0373463318000607/type/journal_article$$EHTML$$P50$$Gcambridge$$H</linktohtml><link.rule.ids>164,314,776,780,27901,27902,55603</link.rule.ids></links><search><creatorcontrib>Sadowski, Jaroslaw</creatorcontrib><creatorcontrib>Stefanski, Jacek</creatorcontrib><title>Asynchronous WAM with Irregular Pulse Repetition</title><title>Journal of navigation</title><addtitle>J. Navigation</addtitle><description>Radiolocation systems for aviation based on Multi-Lateration (MLAT) typically use a set of synchronised ground sensors to receive radio signals broadcast by onboard transmitters. In most cases, the sensor synchronisation in Wide Area Multi-Lateration Systems (WAM) is provided by Global Navigation Satellite System (GNSS) receivers. However, in the case of synchronisation failure, there is still a possibility to estimate the coordinates of the tracked aircraft by using the measurements of the time of arrival taken by non-synchronised sensors. The article presents the principle of operation and equations for calculating the coordinates of an aircraft in an asynchronous multi-lateration system, together with the results of a computer simulation allowing comparison of the accuracy of position estimation between the asynchronous and the typical, synchronous MLAT. This paper contains also some comments on the required stability of the clock source for the sensors working in an asynchronous MLAT system.</description><subject>Accuracy</subject><subject>Air traffic control</subject><subject>Aircraft</subject><subject>Aviation</subject><subject>Clocks & watches</subject><subject>Computer simulation</subject><subject>Crystal oscillators</subject><subject>Global navigation satellite system</subject><subject>Global positioning systems</subject><subject>GPS</subject><subject>Ground stations</subject><subject>Navigation</subject><subject>Navigation satellites</subject><subject>Radar</subject><subject>Radio broadcasting</subject><subject>Radio signals</subject><subject>Receivers & amplifiers</subject><subject>Satellites</subject><subject>Sensors</subject><subject>Stability</subject><subject>Surveillance</subject><subject>Time synchronization</subject><subject>Traffic congestion</subject><subject>Transmitters</subject><issn>0373-4633</issn><issn>1469-7785</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNp1kF9LwzAUxYMoWKcfwLeCz9V7k6ZJH8tQN5go_sHHkibp1rE1M2mRfXtbNvBBfLpwzvmdC4eQa4RbBBR3b8AESzPGUAJABuKERJhmeSKE5KckGu1k9M_JRQjrISNTySMCRdi3euVd6_oQfxZP8XfTreK593bZb5SPX_pNsPGr3dmu6RrXXpKzWg3S1fFOyMfD_ft0liyeH-fTYpFohqJLVCqhrqnKa2WylFNaWY2SV1xhTqXmwhgmNFBu8sqi1FYzpSsDualSZYGxCbk59O68--pt6Mq16307vCwp8hwFMqBDCg8p7V0I3tblzjdb5fclQjkOU_4ZZmDYkVHbyjdmaX-r_6d-ALBmZE8</recordid><startdate>201901</startdate><enddate>201901</enddate><creator>Sadowski, Jaroslaw</creator><creator>Stefanski, Jacek</creator><general>Cambridge University Press</general><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7SC</scope><scope>7SP</scope><scope>7TN</scope><scope>7XB</scope><scope>88I</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FK</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F1W</scope><scope>FR3</scope><scope>GNUQQ</scope><scope>H8D</scope><scope>H96</scope><scope>HCIFZ</scope><scope>JQ2</scope><scope>KR7</scope><scope>L.G</scope><scope>L6V</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope><scope>M2P</scope><scope>M7S</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PTHSS</scope><scope>Q9U</scope></search><sort><creationdate>201901</creationdate><title>Asynchronous WAM with Irregular Pulse Repetition</title><author>Sadowski, Jaroslaw ; Stefanski, Jacek</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c317t-a480ff2a9fad64522bec185b5a1928c57dd37c025d9be18cec3acbd09db4ae033</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Accuracy</topic><topic>Air traffic control</topic><topic>Aircraft</topic><topic>Aviation</topic><topic>Clocks & watches</topic><topic>Computer simulation</topic><topic>Crystal oscillators</topic><topic>Global navigation satellite system</topic><topic>Global positioning systems</topic><topic>GPS</topic><topic>Ground stations</topic><topic>Navigation</topic><topic>Navigation satellites</topic><topic>Radar</topic><topic>Radio broadcasting</topic><topic>Radio signals</topic><topic>Receivers & amplifiers</topic><topic>Satellites</topic><topic>Sensors</topic><topic>Stability</topic><topic>Surveillance</topic><topic>Time synchronization</topic><topic>Traffic congestion</topic><topic>Transmitters</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sadowski, Jaroslaw</creatorcontrib><creatorcontrib>Stefanski, Jacek</creatorcontrib><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Computer and Information Systems Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>Oceanic Abstracts</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Science Database (Alumni Edition)</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection (ProQuest)</collection><collection>Natural Science Collection (ProQuest)</collection><collection>Earth, Atmospheric & Aquatic Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>ProQuest Central Student</collection><collection>Aerospace Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Computer Science Collection</collection><collection>Civil Engineering Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>ProQuest Engineering Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><collection>Science Database</collection><collection>Engineering Database</collection><collection>Earth, Atmospheric & Aquatic Science Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Engineering Collection</collection><collection>ProQuest Central Basic</collection><jtitle>Journal of navigation</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sadowski, Jaroslaw</au><au>Stefanski, Jacek</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Asynchronous WAM with Irregular Pulse Repetition</atitle><jtitle>Journal of navigation</jtitle><addtitle>J. Navigation</addtitle><date>2019-01</date><risdate>2019</risdate><volume>72</volume><issue>1</issue><spage>85</spage><epage>100</epage><pages>85-100</pages><issn>0373-4633</issn><eissn>1469-7785</eissn><abstract>Radiolocation systems for aviation based on Multi-Lateration (MLAT) typically use a set of synchronised ground sensors to receive radio signals broadcast by onboard transmitters. In most cases, the sensor synchronisation in Wide Area Multi-Lateration Systems (WAM) is provided by Global Navigation Satellite System (GNSS) receivers. However, in the case of synchronisation failure, there is still a possibility to estimate the coordinates of the tracked aircraft by using the measurements of the time of arrival taken by non-synchronised sensors. The article presents the principle of operation and equations for calculating the coordinates of an aircraft in an asynchronous multi-lateration system, together with the results of a computer simulation allowing comparison of the accuracy of position estimation between the asynchronous and the typical, synchronous MLAT. This paper contains also some comments on the required stability of the clock source for the sensors working in an asynchronous MLAT system.</abstract><cop>Cambridge, UK</cop><pub>Cambridge University Press</pub><doi>10.1017/S0373463318000607</doi><tpages>16</tpages></addata></record> |
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| language | eng |
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| source | Cambridge University Press Journals Complete |
| subjects | Accuracy Air traffic control Aircraft Aviation Clocks & watches Computer simulation Crystal oscillators Global navigation satellite system Global positioning systems GPS Ground stations Navigation Navigation satellites Radar Radio broadcasting Radio signals Receivers & amplifiers Satellites Sensors Stability Surveillance Time synchronization Traffic congestion Transmitters |
| title | Asynchronous WAM with Irregular Pulse Repetition |
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