Interference mitigation in automotive radar systems by artificial doppler modulation
A method of operating an automotive radar system that includes a radar transmitter unit for transmitting radar waveforms towards a scene, a radar receiving unit for receiving radar waveforms that have been reflected by a target in the scene, and an evaluation and control unit for decoding range-Dopp...
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| creator | Beise, Hans-Peter Stifter, Thomas Schroder, Udo |
| description | A method of operating an automotive radar system that includes a radar transmitter unit for transmitting radar waveforms towards a scene, a radar receiving unit for receiving radar waveforms that have been reflected by a target in the scene, and an evaluation and control unit for decoding range-Doppler information from the received waveforms. The method includes: transmitting a first sequence of radar waveforms (xTx) and a second sequence of radar waveforms ({tilde over (x)}Tx,k) towards the scene that differs from the first transmitted sequence of radar waveforms (xTx) by predetermined phase shifts (φk) such that each radar waveform ({tilde over (x)}Tx,k) of the second sequence has a different predetermined phase shift (φk). First range-Doppler information and second range-Doppler information are decoded. Deviations of the second range-Doppler information from the first range-Doppler information are compared to at least one predetermined deviation value. Based on the results of the comparing, a potential interference condition is identified. |
| format | Patent |
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The method includes: transmitting a first sequence of radar waveforms (xTx) and a second sequence of radar waveforms ({tilde over (x)}Tx,k) towards the scene that differs from the first transmitted sequence of radar waveforms (xTx) by predetermined phase shifts (φk) such that each radar waveform ({tilde over (x)}Tx,k) of the second sequence has a different predetermined phase shift (φk). First range-Doppler information and second range-Doppler information are decoded. Deviations of the second range-Doppler information from the first range-Doppler information are compared to at least one predetermined deviation value. 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The method includes: transmitting a first sequence of radar waveforms (xTx) and a second sequence of radar waveforms ({tilde over (x)}Tx,k) towards the scene that differs from the first transmitted sequence of radar waveforms (xTx) by predetermined phase shifts (φk) such that each radar waveform ({tilde over (x)}Tx,k) of the second sequence has a different predetermined phase shift (φk). First range-Doppler information and second range-Doppler information are decoded. Deviations of the second range-Doppler information from the first range-Doppler information are compared to at least one predetermined deviation value. Based on the results of the comparing, a potential interference condition is identified.</description><subject>ANALOGOUS ARRANGEMENTS USING OTHER WAVES</subject><subject>DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES</subject><subject>LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES</subject><subject>MEASURING</subject><subject>PHYSICS</subject><subject>RADIO DIRECTION-FINDING</subject><subject>RADIO NAVIGATION</subject><subject>TESTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2021</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNyzEKAjEQQNE0FqLeYTyAsO4iaKsoWrvWy5hMZCDJhGRW2NsL4gGsfvP-3PS3pFQ8FUqWILLyC5UlASfAUSWK8pugoMMCdapKscJzAizKni1jACc5ByoQxY3hOy_NzGOotPp1YdaXc3-6bijLQDWjpUQ6PO7b5tDs2113bLt_zAcj5DoB</recordid><startdate>20210202</startdate><enddate>20210202</enddate><creator>Beise, Hans-Peter</creator><creator>Stifter, Thomas</creator><creator>Schroder, Udo</creator><scope>EVB</scope></search><sort><creationdate>20210202</creationdate><title>Interference mitigation in automotive radar systems by artificial doppler modulation</title><author>Beise, Hans-Peter ; Stifter, Thomas ; Schroder, Udo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US10908253B23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2021</creationdate><topic>ANALOGOUS ARRANGEMENTS USING OTHER WAVES</topic><topic>DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES</topic><topic>LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES</topic><topic>MEASURING</topic><topic>PHYSICS</topic><topic>RADIO DIRECTION-FINDING</topic><topic>RADIO NAVIGATION</topic><topic>TESTING</topic><toplevel>online_resources</toplevel><creatorcontrib>Beise, Hans-Peter</creatorcontrib><creatorcontrib>Stifter, Thomas</creatorcontrib><creatorcontrib>Schroder, Udo</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Beise, Hans-Peter</au><au>Stifter, Thomas</au><au>Schroder, Udo</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Interference mitigation in automotive radar systems by artificial doppler modulation</title><date>2021-02-02</date><risdate>2021</risdate><abstract>A method of operating an automotive radar system that includes a radar transmitter unit for transmitting radar waveforms towards a scene, a radar receiving unit for receiving radar waveforms that have been reflected by a target in the scene, and an evaluation and control unit for decoding range-Doppler information from the received waveforms. The method includes: transmitting a first sequence of radar waveforms (xTx) and a second sequence of radar waveforms ({tilde over (x)}Tx,k) towards the scene that differs from the first transmitted sequence of radar waveforms (xTx) by predetermined phase shifts (φk) such that each radar waveform ({tilde over (x)}Tx,k) of the second sequence has a different predetermined phase shift (φk). First range-Doppler information and second range-Doppler information are decoded. Deviations of the second range-Doppler information from the first range-Doppler information are compared to at least one predetermined deviation value. Based on the results of the comparing, a potential interference condition is identified.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING |
| title | Interference mitigation in automotive radar systems by artificial doppler modulation |
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