Observability degree-based inertia/satellite system adaptive hybrid correction method
The invention discloses an observability degree-based inertia/satellite system adaptive hybrid correction method, which comprises the following steps of: firstly, for an inertia/satellite integrated navigation system, defining an observability matrix of the improved integrated navigation system by u...
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| creator | DOU QINGFENG GUO LEI YANG JIAN SHEN XINJING WANG YAN |
| description | The invention discloses an observability degree-based inertia/satellite system adaptive hybrid correction method, which comprises the following steps of: firstly, for an inertia/satellite integrated navigation system, defining an observability matrix of the improved integrated navigation system by using a weighted least square method, and further defining the state observability degree of the integrated navigation system; normalizing the observability according to the historical measurement data; and finally, taking the normalized observability as an adaptive factor to realize adaptive hybridcorrection of the state of the inertial/satellite integrated navigation system. According to the method, the precision of the inertia/satellite integrated navigation system can be improved, the influence of inaccurate state error estimated value on the output of the navigation system is reduced, and the adaptive capacity of the inertia/satellite integrated navigation system is improved.
本发明公开一种基于可观测度的惯性/卫星系统自适应混合校正方法，包括以下 |
| format | Patent |
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本发明公开一种基于可观测度的惯性/卫星系统自适应混合校正方法，包括以下</description><language>chi ; eng</language><subject>ANALOGOUS ARRANGEMENTS USING OTHER WAVES ; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ; GYROSCOPIC INSTRUMENTS ; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES ; MEASURING ; MEASURING DISTANCES, LEVELS OR BEARINGS ; NAVIGATION ; PHOTOGRAMMETRY OR VIDEOGRAMMETRY ; PHYSICS ; RADIO DIRECTION-FINDING ; RADIO NAVIGATION ; SURVEYING ; TESTING</subject><creationdate>2021</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20210126&DB=EPODOC&CC=CN&NR=112269200A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20210126&DB=EPODOC&CC=CN&NR=112269200A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>DOU QINGFENG</creatorcontrib><creatorcontrib>GUO LEI</creatorcontrib><creatorcontrib>YANG JIAN</creatorcontrib><creatorcontrib>SHEN XINJING</creatorcontrib><creatorcontrib>WANG YAN</creatorcontrib><title>Observability degree-based inertia/satellite system adaptive hybrid correction method</title><description>The invention discloses an observability degree-based inertia/satellite system adaptive hybrid correction method, which comprises the following steps of: firstly, for an inertia/satellite integrated navigation system, defining an observability matrix of the improved integrated navigation system by using a weighted least square method, and further defining the state observability degree of the integrated navigation system; normalizing the observability according to the historical measurement data; and finally, taking the normalized observability as an adaptive factor to realize adaptive hybridcorrection of the state of the inertial/satellite integrated navigation system. According to the method, the precision of the inertia/satellite integrated navigation system can be improved, the influence of inaccurate state error estimated value on the output of the navigation system is reduced, and the adaptive capacity of the inertia/satellite integrated navigation system is improved.
本发明公开一种基于可观测度的惯性/卫星系统自适应混合校正方法，包括以下</description><subject>ANALOGOUS ARRANGEMENTS USING OTHER WAVES</subject><subject>DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES</subject><subject>GYROSCOPIC INSTRUMENTS</subject><subject>LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES</subject><subject>MEASURING</subject><subject>MEASURING DISTANCES, LEVELS OR BEARINGS</subject><subject>NAVIGATION</subject><subject>PHOTOGRAMMETRY OR VIDEOGRAMMETRY</subject><subject>PHYSICS</subject><subject>RADIO DIRECTION-FINDING</subject><subject>RADIO NAVIGATION</subject><subject>SURVEYING</subject><subject>TESTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2021</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNyjEKwkAQRuE0FqLeYTxAMIkgWEpQrLTROsxmf83AJht2hkBur4UHsHrF95bZ8-4UaWInQWwmj3cCcscKTzIgmfBO2RC-DNJZDT2x59FkAnWzS-KpjSmhNYkD9bAu-nW2eHFQbH5dZdvL-VFfc4yxgY7cYoA19a0sq-pwrIritP_n-QBWqzoR</recordid><startdate>20210126</startdate><enddate>20210126</enddate><creator>DOU QINGFENG</creator><creator>GUO LEI</creator><creator>YANG JIAN</creator><creator>SHEN XINJING</creator><creator>WANG YAN</creator><scope>EVB</scope></search><sort><creationdate>20210126</creationdate><title>Observability degree-based inertia/satellite system adaptive hybrid correction method</title><author>DOU QINGFENG ; GUO LEI ; YANG JIAN ; SHEN XINJING ; WANG YAN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN112269200A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2021</creationdate><topic>ANALOGOUS ARRANGEMENTS USING OTHER WAVES</topic><topic>DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES</topic><topic>GYROSCOPIC INSTRUMENTS</topic><topic>LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES</topic><topic>MEASURING</topic><topic>MEASURING DISTANCES, LEVELS OR BEARINGS</topic><topic>NAVIGATION</topic><topic>PHOTOGRAMMETRY OR VIDEOGRAMMETRY</topic><topic>PHYSICS</topic><topic>RADIO DIRECTION-FINDING</topic><topic>RADIO NAVIGATION</topic><topic>SURVEYING</topic><topic>TESTING</topic><toplevel>online_resources</toplevel><creatorcontrib>DOU QINGFENG</creatorcontrib><creatorcontrib>GUO LEI</creatorcontrib><creatorcontrib>YANG JIAN</creatorcontrib><creatorcontrib>SHEN XINJING</creatorcontrib><creatorcontrib>WANG YAN</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>DOU QINGFENG</au><au>GUO LEI</au><au>YANG JIAN</au><au>SHEN XINJING</au><au>WANG YAN</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Observability degree-based inertia/satellite system adaptive hybrid correction method</title><date>2021-01-26</date><risdate>2021</risdate><abstract>The invention discloses an observability degree-based inertia/satellite system adaptive hybrid correction method, which comprises the following steps of: firstly, for an inertia/satellite integrated navigation system, defining an observability matrix of the improved integrated navigation system by using a weighted least square method, and further defining the state observability degree of the integrated navigation system; normalizing the observability according to the historical measurement data; and finally, taking the normalized observability as an adaptive factor to realize adaptive hybridcorrection of the state of the inertial/satellite integrated navigation system. According to the method, the precision of the inertia/satellite integrated navigation system can be improved, the influence of inaccurate state error estimated value on the output of the navigation system is reduced, and the adaptive capacity of the inertia/satellite integrated navigation system is improved.
本发明公开一种基于可观测度的惯性/卫星系统自适应混合校正方法，包括以下</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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| subjects | ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES GYROSCOPIC INSTRUMENTS LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION SURVEYING TESTING |
| title | Observability degree-based inertia/satellite system adaptive hybrid correction method |
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