Patents by Inventor Abigail S. Hedden

Abigail S. Hedden 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).

  • Publication number: 20210263132
    Abstract: According to embodiments, a radar system includes: at least one radio receiver which is comprised of: an antenna configured to receive RF data including both the direct-path RF signal transmitted from a radio transmitter and a reflected RF signal when the transmitted RF signal is reflected from the target; a memory configured to store the same predetermined RF waveform profile data used by the transmitter to generate and transmit the RF signal; a timing unit to provide timing; a matched filter application configured to generate and apply a matched filter for identifying RF signal signatures in RF data; and one or more processors configured to: (i) analyze the received RF data to identify multiple, repeated, individual RF signals corresponding to the direct-path transmitted RF signal; (ii) split the identified RF signals corresponding to the direct-path transmitted RF signal into a plurality of repeating units each having an interval time; (iii) create a matched filter using the predetermined transmit waveform
    Type: Application
    Filed: February 11, 2021
    Publication date: August 26, 2021
    Inventors: Kenneth I. Ranney, Kyle A. Gallagher, Daniel T. Galanos, Abigail S. Hedden, Roger P. Cutitta
  • Patent number: 9435882
    Abstract: A method and apparatus for cognitive non-linear radar processing comprising identifying one or more frequency bands of interest, passively scanning, using a non-linear radar (NR), the one or more frequency bands of interest to determine whether interference signals are occupying the one or more bands, transmitting radar waveforms and receiving radar waveform responses at one or more frequency bands determined to be free of interference, determining a likelihood of a target being present or not based on whether the received waveform responses match stored waveform responses for non-linear targets, and modifying waveform parameters of the transmitted radar waveform when the received waveform responses match the stored waveform responses, so as to transmit a modified radar waveform.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: September 6, 2016
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Anthony F. Martone, David M. McNamara, Gregory J. Mazzaro, Abigail S. Hedden
  • Publication number: 20160033622
    Abstract: A method and apparatus for cognitive non-linear radar processing comprising identifying one or more frequency bands of interest, passively scanning, using a non-linear radar (NR), the one or more frequency bands of interest to determine whether interference signals are occupying the one or more bands, transmitting radar waveforms and receiving radar waveform responses at one or more frequency bands determined to be free of interference, determining a likelihood of a target being present or not based on whether the received waveform responses match stored waveform responses for non-linear targets, and modifying waveform parameters of the transmitted radar waveform when the received waveform responses match the stored waveform responses, so as to transmit a modified radar waveform.
    Type: Application
    Filed: August 27, 2013
    Publication date: February 4, 2016
    Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I
    Inventors: Anthony F. Martone, David M. McNamara, Gregory J. Mazzaro, Abigail S. Hedden