Patents Assigned to University Corporation for Atmospheric Research
  • Patent number: 11143748
    Abstract: A shared optics and telescope for transmitting a transmission beam and receiving a return signal is provided. The shared optics and telescope includes a pair of axicon lenses operable to shape the transmission beam into an annular beam having an outer diameter and an inner diameter, a secondary mirror operable to deflect the annular beam into a deflected annular transmission beam, and a primary mirror that includes an inner mirror portion and an outer mirror portion, the inner mirror portion operable to expand the deflected annular transmission beam, and the outer mirror portion operable to collect the return signal.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: October 12, 2021
    Assignees: University Corporation for Atmospheric Research, Montana State University, NASA Langley Research Center
    Inventor: Scott M. Spuler
  • Patent number: 10996663
    Abstract: A method for determining a quality controlled sensor set from a redundant sensor set comprising calculating a first time correlation coefficient and a first autocorrelation coefficient based on a first sensor time series data, calculating a second time correlation coefficient and a second autocorrelation coefficient based on a second sensor time series data, calculating a first and second sensor correlation coefficient based on the first sensor time series data and the second sensor time series data, and determining the quality controlled sensor set with a highest confidence level.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: May 4, 2021
    Assignee: University Corporation for Atmospheric Research
    Inventors: Andrew Gaydos, Robert Kent Goodrich, Scott Landolt
  • Patent number: 10914828
    Abstract: A method and system for removing ground clutter data from time series data are provided. The method comprises receiving first time series data, dividing the first time series data into a plurality of subsets of first time series data, applying a first regression filter to each respective subset first time series data of the plurality of subsets of first time series data to generate a plurality of regression filtered subsets of first time series data, and concatenating the plurality of regression filtered subsets of first time series data to generate a regression filtered first time series data.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: February 9, 2021
    Assignee: University Corporation for Atmospheric Research
    Inventor: John Clark Hubbert
  • Publication number: 20210011117
    Abstract: A method and system for removing ground clutter data from time series radar data are provided. The method comprises receiving the time series radar data, applying a clutter filter to the time series radar data to generate a filtered time series radar data, applying a discrete Fourier transform to the filtered time series radar data to generate a filtered frequency domain data, determining a filter bias for one or more filter biased frequency domain frequencies of the filtered frequency domain data based on a frequency response of the clutter filter, and correcting the filtered frequency domain data by adding the filter bias to the filtered frequency domain data at the one or more filter biased frequency domain frequencies to generate a filtered and bias corrected frequency domain data.
    Type: Application
    Filed: July 11, 2019
    Publication date: January 14, 2021
    Applicant: University Corporation for Atmospheric Research
    Inventor: John Clark HUBBERT
  • Publication number: 20200355580
    Abstract: An air sample collection apparatus and methods for operating the air sample collection apparatus are provided. The air sample apparatus comprises a plurality of air canisters comprising at least a first canister and a second canister, a multi-position valve comprising an outlet, and an inlet region, which are fluidly connected to a plurality of ports. Each respective port is fluidly connected to a canister of the plurality of air canisters, a pump operable to provide pressurized sample air to the inlet region of the multi-position valve, and a computing device operable to open and close each respective port fluidly coupled to each canister of the plurality of canisters.
    Type: Application
    Filed: May 8, 2019
    Publication date: November 12, 2020
    Applicant: University Corporation for Atmospheric Research
    Inventor: Elizabeth ASHER
  • Patent number: 10794998
    Abstract: Lidar is an acronym for Light Detection And Ranging. The technology may be used to measure distance by illuminating a target with a laser beam and performing analysis on the reflected laser beam light. In the atmospheric sciences, Lidar may be used to study the optical depth of clouds, the impact of aerosols on clouds, and the interactions between aerosols and clouds on the climate. The present application proposes a lidar-based technology using a diode laser (101) beam sent through a tapered semiconductor optical amplifier (106) and an axicon pair expander (108) wherein the laser light may be transmitted through a telescope (110) at an object to be studied. Upon striking the object to be studied, the laser (101) is reflected and recovered by the telescope (110). The reflected laser is then sent through a heated rubidium vapor cell (115) and a total detection channel (116) for analysis.
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: October 6, 2020
    Assignees: University Corporation for Atmospheric Research, Wisconsin Alumni Research Foundation
    Inventors: Scott Spuler, Matthew Hayman, Bruce Morley, Edwin W. Eloranta
  • Publication number: 20200233115
    Abstract: A method and system for determining cloud seeding potential comprises receiving a temperature and a liquid water content (LWC). A seeding index is calculated based on the temperature T, a temperature membership function ƒ(T), the LWC, and a liquid water content membership function ƒ(LWC) at the plurality of grid points to create a seeding index set. A target region potential flag is set based on the seeding index set.
    Type: Application
    Filed: January 17, 2019
    Publication date: July 23, 2020
    Applicant: University Corporation for Atmospheric Research
    Inventors: Lulin XUE, Roy M. RASMUSSEN, Sarah Anne TESSENDORF
  • Publication number: 20200200887
    Abstract: A method and system for removing ground clutter data from time series data are provided. The method comprises receiving first time series data, dividing the first time series data into a plurality of subsets of first time series data, applying a first regression filter to each respective subset first time series data of the plurality of subsets of first time series data to generate a plurality of regression filtered subsets of first time series data, and concatenating the plurality of regression filtered subsets of first time series data to generate a regression filtered first time series data.
    Type: Application
    Filed: December 20, 2018
    Publication date: June 25, 2020
    Applicant: University Corporation for Atmospheric Research
    Inventor: John Clark HUBBERT
  • Publication number: 20200133250
    Abstract: A method for determining a quality controlled sensor set from a redundant sensor set comprising calculating a first time correlation coefficient and a first autocorrelation coefficient based on a first sensor time series data, calculating a second time correlation coefficient and a second autocorrelation coefficient based on a second sensor time series data, calculating a first and second sensor correlation coefficient based on the first sensor time series data and the second sensor time series data, and determining the quality controlled sensor set with a highest confidence level.
    Type: Application
    Filed: October 30, 2018
    Publication date: April 30, 2020
    Applicant: University Corporation for Atmospheric Research
    Inventors: Andrew GAYDOS, Robert Kent Goodrich, Scott Landolt
  • Patent number: 10605900
    Abstract: A shared optics and telescope, a filter, and a micropulse differential absorption LIDAR are provided, with methods to use the same. The shared optics and telescope includes a pair of axicon lenses, a secondary mirror, a primary mirror including an inner mirror portion and an outer mirror portion, the inner mirror portion operable to expand the deflected annular transmission beam, and the outer mirror portion operable to collect the return signal. The filter includes an etalon and a first filter. The micropulse differential absorption LIDAR includes first and second laser signals, a laser transmission beam selection switch, a first laser return signal switch, and a toggle timer.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: March 31, 2020
    Assignees: University Corporation for Atmospheric Research, Montana State University, NASA Langley Research Center
    Inventors: Scott M Spuler, Kevin S Repasky, Amin R Nehrir
  • Patent number: 10473521
    Abstract: A photon counting system is provided. The photon counting system comprises an analog domain and a digital domain in communication with the analog domain. A detector is configured to detect photons. An analog digital converter is provided in the digital domain, while an amplifier circuit is provided in the analog domain that is configured to receive the detector's output, wherein the amplifier circuit's output is in communication with the analog digital converter. The output of the analog digital converter is in communication with a signal processing system that may perform accumulation of signals and store them in memory.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: November 12, 2019
    Assignee: University Corporation for Atmospheric Research
    Inventors: Matthew Hayman, Scott Spuler
  • Patent number: 10379024
    Abstract: A method for determining a distribution of events, a method for determining a distribution of particle sizes in a sample of air, and an apparatus for performing the same are provided. The method includes obtaining a measured ensemble property distribution function for one or more events, generating one or more theoretical ensemble property distribution functions based on Poisson statistics using one or more model parameters, and determining an event parameter property distribution function by fitting one or more of the theoretical ensemble property distribution functions to the measured ensemble property distribution function using a forward inversion algorithm.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: August 13, 2019
    Assignee: University Corporation for Atmospheric Research
    Inventor: Matthew Hayman
  • Patent number: 10352813
    Abstract: A method for correcting an ambient pressure measurement, a method for calculating a temperature, and an apparatus for affecting the same for an aircraft measuring system are provided. The methods include the steps of receiving an airspeed measurement from a laser sensor, receiving a total pressure measurement, and calculating an ambient pressure correction. A corrected ambient pressure or a calculated temperature may be calculated. The apparatus includes a laser sensor configured to provide an airspeed measurement, an aircraft instrument configured to provide a total pressure measurement, and a processing system.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: July 16, 2019
    Assignee: University Corporation for Atmospheric Research
    Inventors: William A Cooper, Scott Spuler, Mike Spowart, Dirk Richter
  • Patent number: 10295672
    Abstract: A lidar system and method to enable simultaneous accurate and high spatial and temporal resolution measurements of atmospheric temperature, wind, and water vapor. The technology employs a laser (101), a telescope (110), an acousto-optic modulator (105) or an electro-optic modulator (205), a Thulium-doped fiber amplifier (206), and an optical circulator (108) which projects a laser signal into the atmosphere toward a phenomenon to be studied. The laser is reflected or backscattered by the atmospheric phenomena and retrieved by the telescope (110), where the laser is processed by a signal sampler and processor (114) for analysis.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: May 21, 2019
    Assignee: University Corporation for Atmospheric Research
    Inventors: Farzad Cyrus Foroughi Abari, Scott M Spuler
  • Publication number: 20180321362
    Abstract: A shared optics and telescope for transmitting a transmission beam and receiving a return signal is provided. The shared optics and telescope includes a pair of axicon lenses operable to shape the transmission beam into an annular beam having an outer diameter and an inner diameter, a secondary mirror operable to deflect the annular beam into a deflected annular transmission beam, and a primary mirror that includes an inner mirror portion and an outer mirror portion, the inner mirror portion operable to expand the deflected annular transmission beam, and the outer mirror portion operable to collect the return signal.
    Type: Application
    Filed: June 29, 2018
    Publication date: November 8, 2018
    Applicants: University Corporation for Atmospheric Research, Montana State University, NASA Langley Research Center
    Inventor: Scott M. SPULER
  • Publication number: 20180321361
    Abstract: A filter for a micropulse differential absorption LIDAR is provided. The filter comprises an etalon including a free spectral range substantially the same as a difference between a first laser wavelength and a second laser wavelength, the etalon further including a finesse providing substantial background noise suppression and substantially constant transmission of the first laser wavelength and the second laser wavelength over a predetermined range of wavelengths, and a first filter having a first filter bandpass selected to include the first laser wavelength and the second laser wavelength.
    Type: Application
    Filed: June 28, 2018
    Publication date: November 8, 2018
    Applicants: University Corporation for Atmospheric Research, Montana State University, NASA Langley Research Center
    Inventors: Scott M. Spuler, Kevin S. Repasky, Amin R. Nehrir
  • Publication number: 20180292257
    Abstract: A photon counting system is provided. The photon counting system comprises an analog domain and a digital domain in communication with the analog domain. A detector is configured to detect photons. An analog digital converter is provided in the digital domain, while an amplifier circuit is provided in the analog domain that is configured to receive the detector's output, wherein the amplifier circuit's output is in communication with the analog digital converter. The output of the analog digital converter is in communication with a signal processing system that may perform accumulation of signals and store them in memory.
    Type: Application
    Filed: April 5, 2017
    Publication date: October 11, 2018
    Applicant: University Corporation for Atmospheric Research
    Inventors: Matthew HAYMAN, Scott Spuler
  • Publication number: 20180112964
    Abstract: An interferometer (10) is provided that has a stage (28) configured to have a linear motion path. A first retroreflector (18) and a second retroreflector (24) are fixedly coupled to the stage (28). A tube (32) is provided, and the stage (28) is configured to reciprocate about the tube (32). A beamsplitter (14) and a 45° mirror (16) are disposed in the tube (32). A detector (22) is configured to detect light passing through the beamsplitter (14), and the beamsplitter (14) is configured to split an incident light beam into a transmitted beam (15) and a reflected beam (17), wherein the transmitted beam (15) passes to the second retroreflector (24) and the reflected beam (17) passes to the first retroreflector (18). The transmitted beam (15) and a reflected beam (17) are focused on the detector (22).
    Type: Application
    Filed: October 26, 2016
    Publication date: April 26, 2018
    Applicant: University Corporation for Atmospheric Research
    Inventors: James Hannigan, William Mankin
  • Patent number: 9952031
    Abstract: An interferometer (10) is provided that has a stage (28) configured to have a linear motion path. A first retroreflector (18) and a second retroreflector (24) are fixedly coupled to the stage (28). A tube (32) is provided, and the stage (28) is configured to reciprocate about the tube (32). A beamsplitter (14) and a 45° mirror (16) are disposed in the tube (32). A detector (22) is configured to detect light passing through the beamsplitter (14), and the beamsplitter (14) is configured to split an incident light beam into a transmitted beam (15) and a reflected beam (17), wherein the transmitted beam (15) passes to the second retroreflector (24) and the reflected beam (17) passes to the first retroreflector (18). The transmitted beam (15) and a reflected beam (17) are focused on the detector (22).
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: April 24, 2018
    Assignee: University Corporation for Atmospheric Research
    Inventors: James Hannigan, William Mankin
  • Patent number: 9851441
    Abstract: A method for determining a kinematic structure of a two-dimensional wind field and a system determining the same are provided. The method comprises receiving a plurality of Doppler velocities and a plurality of distances between a Doppler radar and a gate. Each Doppler velocity of the plurality of Doppler velocities corresponds to a respective distance of the plurality of distances between the Doppler radar and the gate. The method further comprises calculating a plurality of distance Doppler velocity values. The distance Doppler velocity values represent the plurality of measured Doppler velocities and the distance between the Doppler radar and the gate. The method further comprises estimating the kinematic structure of the 2D wind field using the plurality of distance Doppler wind velocity values.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: December 26, 2017
    Assignee: University Corporation for Atmospheric Research
    Inventors: Wen-Chau Lee, Jong-Dao Jou