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Ramachandra J Sattigeri

from Ashburn, VA
Age ~45

Ramachandra Sattigeri Phones & Addresses

  • 42269 Hampton Woods Ter, Ashburn, VA 20148
  • Brambleton, VA
  • 932 Preston Creek Dr, McDonough, GA 30253
  • Centreville, VA
  • Stockbridge, GA
  • Atlanta, GA
  • Powder Springs, GA
  • 1310 Waterford Lndg, McDonough, GA 30253

Work

Company: Guided systems technologies, inc Feb 2008 Position: Senior gnc engineer

Education

School / High School: Georgia Institute of Technology- Atlanta, GA Aug 2007 Specialities: Doctorate of Philosophy in Aerospace Engineering

Skills

Guidance • Inertial Navigation • Flight Control. UAV Flight Testing • Kalman Filtering • Adaptive Control • Matlab • Simulink • C

Resumes

Resumes

Ramachandra Sattigeri Photo 1

Ramachandra Sattigeri McDonough, GA

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Work:
Guided Systems Technologies, Inc

Feb 2008 to 2000
Senior GNC Engineer

Georgia Institute of Technology
Atlanta, GA
Aug 2000 to Apr 2008
Graduate Research Assistant

Education:
Georgia Institute of Technology
Atlanta, GA
Aug 2007
Doctorate of Philosophy in Aerospace Engineering

Georgia Institute of Technology
Atlanta, GA
Dec 2002
Masters of Science in Aerospace Engineering

Indian Institute of Technology
Mumbai, Maharashtra
Jun 2000
Bachelors of Technology in Aerospace Engineering

Skills:
Guidance, Inertial Navigation, Flight Control. UAV Flight Testing, Kalman Filtering, Adaptive Control, Matlab, Simulink, C
Ramachandra Sattigeri Photo 2

Ramachandra Sattigeri

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Publications

Us Patents

System And Method For Maintaining Cooperative Precision Navigation And Timing (Pnt) Across Networked Platforms In Contested Environments

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US Patent:
20220365165, Nov 17, 2022
Filed:
May 14, 2021
Appl. No.:
17/320707
Inventors:
- Cedar Rapids IA, US
Ramachandra J. Sattigeri - Ashburn VA, US
Vladislav Gavrilets - McLean VA, US
James H. Doty - Cedar Rapids IA, US
International Classification:
G01S 5/02
H04W 76/10
H04W 4/02
H04B 7/185
G01S 19/47
Abstract:
A system and method established and maintains precision relative position, navigation, and timing (PNT) across a network of at least four mutually connected mobile platforms. In embodiments, a key (e.g., advantaged, absolute positioning capable) node of the network determines its pressure altitude and inertial state relative to its platform reference frame and receives inertial state and pressure altitude data from each neighboring node (in exchange for its own) to estimate the relative position and orientation of each neighbor node in its platform frame. The key node performs ranging to each neighboring node, and the neighboring nodes additionally range between each other and exchange ranging data with the key node. By correcting position and orientation estimates via ranging data, the key node determines and maintains extended relative PNT (e.g., in GPS-denied areas), which relative PNT solution is distributed across all network nodes.

Efficient Transfer Of Dynamic 3D World Model Data

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US Patent:
20210158608, May 27, 2021
Filed:
Nov 25, 2019
Appl. No.:
16/694664
Inventors:
- Cedar Rapids IA, US
Ramachandra J. Sattigeri - Ashburn VA, US
Arjun Passi - Lynchburg VA, US
International Classification:
G06T 17/05
G01C 21/36
G06T 19/20
G06T 17/20
G06T 15/04
G06T 17/10
Abstract:
A system in a mobile platform creates a three-dimensional world model from sets of volume elements organized into sets of volume elements of increasing size and converted into an octree data structure. The system receives a request for a map of a specific, limited region and at a specific, limited level of detail and produces a reduced three-dimensional world model to conform to the limited region and level of detail. The reduced map is transmitted to the requesting platform and periodically updated. The map may be reduced by categorizing the lowest level of volume elements according to the worst case of any constituent volume elements. Alternatively, the system may indicate in the lowest level of volume elements whether the receiving platform would benefit from an increased level of detail.

System And Method For Hybrid Optical/Inertial Headtracking Via Numerically Stable Kalman Filter

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US Patent:
20190041979, Feb 7, 2019
Filed:
Aug 7, 2017
Appl. No.:
15/670934
Inventors:
- Cedar Rapids IA, US
Bobby D. Foote - Marion IA, US
Christopher L. George - Winchester VA, US
Ramachandra J. Sattigeri - Ashburn VA, US
International Classification:
G06F 3/01
G06T 7/70
G01P 15/08
G01P 15/105
B64D 43/00
Abstract:
A system and related method for hybrid headtracking receives head-referenced pose data from a head-mounted IMU and platform-referenced or georeferenced position and orientation (pose) data from a platform-mounted IMU, determines error models corresponding to uncertainties associated with both IMUs, and performs an initial estimate of head pose relative to the platform reference frame based on the head-referenced and platform-referenced pose data. A numerically stable UD factorization of the Kalman filter propagates the estimated head pose data forward in time and corrects the initial head pose estimate (and may correct the error models associated with the head-mounted and platform-mounted IMUs) based on secondary head pose estimates, and corresponding error models, received from an optical or magnetic aiding device. The corrected head pose data is forward to a head-worn display to ensure high accuracy of displayed imagery and symbology.
Ramachandra J Sattigeri from Ashburn, VA, age ~45 Get Report