Patents by Inventor Arastoo Zabolestani Moradi
Arastoo Zabolestani Moradi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11598881Abstract: A method of processing signal paths includes receiving an estimated location for a GNSS receiver in an environment. The method also includes generating a plurality of candidate positions about the estimated location where each candidate position corresponds to a possible actual location of the GNSS receiver. The method further includes, for each available satellite at each candidate position, modeling a plurality of candidate signal paths by ray-launching a raster map of geographical data. Here, the plurality of candidate signal paths includes one or more reflected signal paths. At each candidate position, the method also includes comparing, the plurality of candidate signal paths modeled for each available satellite at the respective candidate position to measured GNSS signal data from the GNSS receiver and generating a likelihood that the respective candidate position includes the actual location of the GNSS receiver based on the comparison.Type: GrantFiled: September 11, 2020Date of Patent: March 7, 2023Assignee: Google LLCInventors: Mohammed Khider, Frank Van Diggelen, Imad Fattouch, Zifei Tong, David Orendorff, Arastoo Zabolestani Moradi, Kevin Watts, Guoyu Fu
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Patent number: 11531118Abstract: A method of processing signal paths includes receiving an estimated location for a GNSS receiver in an environment. The method also includes generating a plurality of candidate positions about the estimated location where each candidate position corresponds to a possible actual location of the GNSS receiver. The method further includes, for each available satellite at each candidate position, modeling a plurality of candidate signal paths by ray-launching a raster map of geographical data Here, the plurality of candidate signal paths includes one or more reflected signal paths. At each candidate position, the method also includes comparing, the plurality of candidate signal paths modeled for each available satellite at the respective candidate position to measured GNSS signal data from the GNSS receiver and generating a likelihood that the respective candidate position includes the actual location of the GNSS receiver based on the comparison.Type: GrantFiled: September 1, 2020Date of Patent: December 20, 2022Assignee: Google LLCInventors: Imad Jean Fattouch, Arastoo Zabolestani Moradi, Frank Van Diggelen, Zifei Tong, Mohammed Khider, Stefano Maggiolo, David Orendorff
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Patent number: 11275179Abstract: A method of processing signal paths includes receiving an estimated location for a GNSS receiver in an environment. The method also includes generating a plurality of candidate positions about the estimated location where each candidate position corresponds to a possible actual location of the GNSS receiver. The method further includes, for each available satellite at each candidate position, modeling a plurality of candidate signal paths by ray-launching a raster map of geographical data. Here, the plurality of candidate signal paths includes one or more reflected signal paths. At each candidate position, the method also includes comparing, the plurality of candidate signal paths modeled for each available satellite at the respective candidate position to measured GNSS signal data from the GNSS receiver and generating a likelihood that the respective candidate position includes the actual location of the GNSS receiver based on the comparison.Type: GrantFiled: September 11, 2020Date of Patent: March 15, 2022Assignee: Google LLCInventors: Frank Van Diggelen, Mohammed Khider, Arastoo Zabolestani Moradi
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Publication number: 20220066048Abstract: A method of processing signal paths includes receiving an estimated location for a GNSS receiver in an environment. The method also includes generating a plurality of candidate positions about the estimated location where each candidate position corresponds to a possible actual location of the GNSS receiver. The method further includes, for each available satellite at each candidate position, modeling a plurality of candidate signal paths by ray-launching a raster map of geographical data. Here, the plurality of candidate signal paths includes one or more reflected signal paths. At each candidate position, the method also includes comparing, the plurality of candidate signal paths modeled for each available satellite at the respective candidate position to measured GNSS signal data from the GNSS receiver and generating a likelihood that the respective candidate position includes the actual location of the GNSS receiver based on the comparison.Type: ApplicationFiled: September 11, 2020Publication date: March 3, 2022Applicant: Google LLCInventors: Frank van Diggelen, Mohammed Khider, Arastoo Zabolestani Moradi
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Publication number: 20220066040Abstract: A method of processing signal paths includes receiving an estimated location for a GNSS receiver in an environment. The method also includes generating a plurality of candidate positions about the estimated location where each candidate position corresponds to a possible actual location of the GNSS receiver. The method further includes, for each available satellite at each candidate position, modeling a plurality of candidate signal paths by ray-launching a raster map of geographical data Here, the plurality of candidate signal paths includes one or more reflected signal paths. At each candidate position, the method also includes comparing, the plurality of candidate signal paths modeled for each available satellite at the respective candidate position to measured GNSS signal data from the GNSS receiver and generating a likelihood that the respective candidate position includes the actual location of the GNSS receiver based on the comparison.Type: ApplicationFiled: September 1, 2020Publication date: March 3, 2022Applicant: Google LLCInventors: Imad Jean Fattouch, Arastoo Zabolestani Moradi, Frank Van Diggelen, Zifei Tong, Mohammed Khider, Stefano Maggiolo, David Orendorff
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Publication number: 20220066041Abstract: A method of processing signal paths includes receiving an estimated location for a GNSS receiver in an environment. The method also includes generating a plurality of candidate positions about the estimated location where each candidate position corresponds to a possible actual location of the GNSS receiver. The method further includes, for each available satellite at each candidate position, modeling a plurality of candidate signal paths by ray-launching a raster map of geographical data. Here, the plurality of candidate signal paths includes one or more reflected signal paths. At each candidate position, the method also includes comparing, the plurality of candidate signal paths modeled for each available satellite at the respective candidate position to measured GNSS signal data from the GNSS receiver and generating a likelihood that the respective candidate position includes the actual location of the GNSS receiver based on the comparison.Type: ApplicationFiled: September 11, 2020Publication date: March 3, 2022Applicant: Google LLCInventors: Mohammed Khider, Frank Van Diggelen, Imad Fattouch, Zifei Tong, David Orendorff, Arastoo Zabolestani Moradi, Kevin Watts, Guoyu Fu