Patents by Inventor Hariklia Karagiannis

Hariklia Karagiannis 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).

  • Method and apparatus for implementing high fidelity Doppler phase and time effects in advanced EW stimulus systems
    Patent number: 8552908
    Abstract: A high fidelity simulation of Doppler that may exactly replicate the phenomenology of the physical world. Compute the linear (Line of sight) kinematics (Slant Range, Radial Velocity, and Radial Acceleration) for each of a multiplicity of emitter-receiver pairs in accordance with exact 3D vector mathematics. Smoothly interpolate the linear kinematic parameters to produce accurate instantaneous values of these parameters at sample rates sufficient to produce negligible error effects in the presence of realistic aircraft maneuvers. Calculate the Doppler frequency, in accordance with well known physics, from the emitter carrier wavelength and a high sample rate. Calculate the Doppler effect as a differential phase (Doppler frequency×sample time) and apply the effect as incremental phase shifts to the carrier signal.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: October 8, 2013
    Assignee: AAI Corporation
    Inventors: James J. Jaklitsch, Hariklia Karagiannis
  • METHOD AND APPARATUS FOR IMPLEMENTING HIGH FIDELITY DOPPLER PHASE AND TIME EFFECTS IN ADVANCED EW STIMULUS SYSTEMS
    Publication number: 20130009822
    Abstract: A high fidelity simulation of Doppler that may exactly replicate the phenomenology of the physical world. Compute the linear (Line of sight) kinematics (Slant Range, Radial Velocity, and Radial Acceleration) for each of a multiplicity of emitter-receiver pairs in accordance with exact 3D vector mathematics. Smoothly interpolate the linear kinematic parameters to produce accurate instantaneous values of these parameters at sample rates sufficient to produce negligible error effects in the presence of realistic aircraft maneuvers. Calculate the Doppler frequency, in accordance with well known physics, from the emitter carrier wavelength and a high sample rate. Calculate the Doppler effect as a differential phase (Doppler frequency×sample time) and apply the effect as incremental phase shifts to the carrier signal.
    Type: Application
    Filed: July 5, 2011
    Publication date: January 10, 2013
    Applicant: AAI Corporation
    Inventors: James J. Jaklitsch, Hariklia Karagiannis