Patents Assigned to HOUSTON RADAR LLC
  • Patent number: 11119209
    Abstract: A first method includes receiving a first reflected radar signal from a target in a first field of view and receiving a second reflected radar signal from a target in a second field of view offset from the first field of view by a predetermined distance; transforming the first and second reflected radar signals to obtain first and second sets of frequency coefficients, from which a frequency-dependent phase difference is obtained; and calculating a time-delay from the slope of the frequency dependence. A second method includes obtaining summed difference values between the first and second radar responses, where each of the summed difference values corresponds to different time shifts between the first and second radar response, and deriving from the summed difference values a time-delay associated with the target's motion from the first field of view to the second field of view. A third method combines the time-delays or associated speeds obtained from independent estimators.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: September 14, 2021
    Assignee: Houston Radar LLC
    Inventors: Sergei Sharonov, Brian Hill, Vipin Malik, Stanley J. Smith
  • Publication number: 20190257940
    Abstract: A first method includes receiving a first reflected radar signal from a target in a first field of view and receiving a second reflected radar signal from a target in a second field of view offset from the first field of view by a predetermined distance; transforming the first and second reflected radar signals to obtain first and second sets of frequency coefficients, from which a frequency-dependent phase difference is obtained; and calculating a time-delay from the slope of the frequency dependence. A second method includes obtaining summed difference values between the first and second radar responses, where each of the summed difference values corresponds to different time shifts between the first and second radar response, and deriving from the summed difference values a time-delay associated with the target's motion from the first field of view to the second field of view. A third method combines the time-delays or associated speeds obtained from independent estimators.
    Type: Application
    Filed: April 29, 2019
    Publication date: August 22, 2019
    Applicant: HOUSTON RADAR LLC
    Inventors: Sergei SHARONOV, Brian HILL, Vipin MALIK, Stanley J. SMITH
  • Patent number: 10317525
    Abstract: A first method includes receiving a first reflected radar signal from a target in a first field of view and receiving a second reflected radar signal from a target in a second field of view offset from the first field of view by a predetermined distance; transforming the first and second reflected radar signals to obtain first and second sets of frequency coefficients, from which a frequency-dependent phase difference is obtained; and calculating a time-delay from the slope of the frequency dependence. A second method includes obtaining summed difference values between the first and second radar responses, where each of the summed difference values corresponds to different time shifts between the first and second radar response, and deriving from the summed difference values a time-delay associated with the target's motion from the first field of view to the second field of view. A third method combines the time-delays or associated speeds obtained from independent estimators.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: June 11, 2019
    Assignee: HOUSTON RADAR LLC
    Inventors: Sergei Sharonov, Brian Hill, Vipin Malik, Stanley J Smith
  • Publication number: 20170176590
    Abstract: A first method includes receiving a first reflected radar signal from a target in a first field of view and receiving a second reflected radar signal from a target in a second field of view offset from the first field of view by a predetermined distance; transforming the first and second reflected radar signals to obtain first and second sets of frequency coefficients, from which a frequency-dependent phase difference is obtained; and calculating a time-delay from the slope of the frequency dependence. A second method includes obtaining summed difference values between the first and second radar responses, where each of the summed difference values corresponds to different time shifts between the first and second radar response, and deriving from the summed difference values a time-delay associated with the target's motion from the first field of view to the second field of view. A third method combines the time-delays or associated speeds obtained from independent estimators.
    Type: Application
    Filed: March 19, 2015
    Publication date: June 22, 2017
    Applicant: HOUSTON RADAR LLC
    Inventors: Sergei SHARONOV, Brian HILL, Vipin MALIK, Stanley J SMITH