Search

Sanjeev Gunawardena

from Dayton, OH
Age ~52
Get Report
Related to:
Serendipity S GunawardenaAmali Gunawardena, 50Serendipity S Gunawardena, 24
Connected to:
Deepal V Gunawardana, 57Geewananda P Gunawardana, 72Indrani W Gunawardana, 70Kapila A Gunawardena, 61Nuwan T Gunawardhana, 36Pathmal M Gunawardana, 51Ruwanthi N Gunawardane, 49Atakan Gunay, 42Huseyin S Gunay, 74Zeki S Gunay, 53

Sanjeev Gunawardena Phones & Addresses

  • 242 Lairwood Dr, Dayton, OH 45458 (740) 593-7025
  • Centerville, OH
  • 6300 Angel Ridge Rd, Athens, OH 45701 (740) 593-7025
  • 35 Wolfe St, Athens, OH 45701 (740) 593-7025

Work

Company: Ohio university avionics engineering center Sep 1999 Position: Senior research engineer

Education

School / High School: Ohio University 1993 to 1999

Skills

Algorithms • Vhdl • Simulations • Matlab • Fpga • Signal Processing • Gps • Gnss • Sensors • Systems Engineering • Embedded Systems • Digital Signal Processing • Navigation Systems • C++ • Software Development • Rf Design • Navigation • Gnss Receiver Design • Software Defined Radio • Receivers • X86 Assembly • Multi Core Programming • Embedded C • Teaching • Hardware Architecture • System Design • Rtl Design • Xilinx Ise • Board Development • Fpga Prototyping • Board Layout • Lecturing • High Speed Interfaces • Multithreading • Visual Studio • Device Drivers • Sse2 • Microwave Engineering • Genesys • Gnss Baseband Processing • Gnss Correlation Engines • Pcie • Software Design • Fpga Design • Mex • Sse • Rfmw • Seminars

Interests

Algorithms • Design • Gps/Gnss Receivers

Emails

g***[email protected]

Industries

Aviation & Aerospace

Resumes

Resumes

Sanjeev Gunawardena Photo 1

Research Assistant Professor

View page
Location:
Dayton, OH
Industry:
Aviation & Aerospace
Work:
Ohio University Avionics Engineering Center since Sep 1999
Senior Research Engineer
Education:
Ohio University 1993 - 1999
Skills:
Algorithms
Vhdl
Simulations
Matlab
Fpga
Signal Processing
Gps
Gnss
Sensors
Systems Engineering
Embedded Systems
Digital Signal Processing
Navigation Systems
C++
Software Development
Rf Design
Navigation
Gnss Receiver Design
Software Defined Radio
Receivers
X86 Assembly
Multi Core Programming
Embedded C
Teaching
Hardware Architecture
System Design
Rtl Design
Xilinx Ise
Board Development
Fpga Prototyping
Board Layout
Lecturing
High Speed Interfaces
Multithreading
Visual Studio
Device Drivers
Sse2
Microwave Engineering
Genesys
Gnss Baseband Processing
Gnss Correlation Engines
Pcie
Software Design
Fpga Design
Mex
Sse
Rfmw
Seminars
Interests:
Algorithms
Design
Gps/Gnss Receivers

Publications

Us Patents

Systems And Methods For Acquisition And Tracking Of Low Cnr Gps Signals

View page
US Patent:
20060071851, Apr 6, 2006
Filed:
Sep 22, 2005
Appl. No.:
11/233531
Inventors:
Frank Graas - Lancaster OH, US
Andrey Soloviev - The Plains OH, US
Sanjeev Gunawardena - Athens OH, US
International Classification:
G01S 5/14
US Classification:
342357140
Abstract:
A receiver for continuous carrier phase tracking of low carrier-to-noise ratio (“CNR”) signals from a plurality of radio navigation satellites while the receiver is mobile. The receiver may have: a radio frequency (RF) front-end that provides satellite data corresponding to signals received from the plurality of radio navigation satellites; an inertial measurement unit (IMU) that provides inertial data; and a processor circuit in circuit communication with the RF front end and the IMU, the processor circuit being capable of using satellite data from the RF front-end and inertial data from the IMU to perform continuous carrier phase tracking of low CNR radio navigation satellite signals having a CNR of about 20 dB-Hz, while the receiver is mobile. The receiver may be a GPS receiver for continuous carrier phase tracking of low-CNR GPS signals.

Packet-Based Input/Output Interface For A Correlation Engine

View page
US Patent:
20130051285, Feb 28, 2013
Filed:
Aug 23, 2012
Appl. No.:
13/593028
Inventors:
Sanjeev Gunawardena - Athens OH, US
Jeff Dickman - Thousand Oaks CA, US
Mathew A. Cosgrove - Woodland Hills CA, US
International Classification:
H04B 1/709
H04L 5/16
US Classification:
370277, 375150, 375148, 375142, 375E01002
Abstract:
A navigation system includes a correlation engine configured to despread a received signal. The correlation engine includes a correlator configured to evaluate the received signal against a replica signal to produce a correlation result, and a packet encoder configured to produce a packet comprising a destination address, a source address, and the correlation result. An input/output interface is configured to provide the packet to another component in the navigation system.

Systems And Methods For Adaptive Sample Quantization

View page
US Patent:
20130148763, Jun 13, 2013
Filed:
Dec 12, 2012
Appl. No.:
13/712558
Inventors:
SANJEEV GUNAWARDENA - Athens OH, US
Jeff Dickman - Thousand Oaks CA, US
Mathew A. Cosgrove - Woodland Hills CA, US
International Classification:
H04B 1/10
US Classification:
375340
Abstract:
One embodiment includes an adaptive sample quantization system. The adaptive sample quantization system includes an antenna to receive a radio frequency (RF) signal having data encoded therein, and analog antenna electronics configured to convert the RF signal to an analog electrical signal. The system also includes an analog-to-digital converter (ADC) directly coupled to the antenna and configured to generate a plurality of consecutive digital samples of the RF signal. The system further includes a quantizer to determine a mode based on the plurality of consecutive digital samples and to select at least one threshold based on the determined mode. The quantizer can further compare each digital sample with the at least one threshold to generate a corresponding one of a plurality of output samples having a reduced number of bits relative to the respective digital sample to substantially mitigate potential interference and facilitate extraction of the data.

Reconfigurable Correlator For A Navigation System

View page
US Patent:
20130156073, Jun 20, 2013
Filed:
Dec 13, 2012
Appl. No.:
13/713817
Inventors:
Sanjeev Gunawardena - Athens OH, US
Jeff Dickman - Thousand Oaks CA, US
Mathew A. Cosgrove - Woodland Hills CA, US
International Classification:
H04B 1/709
US Classification:
375150
Abstract:
Systems and methods are provided for a correlator system. The system includes a plurality of numerically controlled oscillators and a multiplier configured to receive an input stream representing a received signal. A carrier multiplexer is configured to select between respective outputs of at least two of the plurality of numerically controlled oscillators and provide the selected output to the multiplier. A code generator is configured to provide a replica code. A delay component is configured to provide a delayed code from the replica code. A code multiplexer is configured to selectively provide each of the delayed code and the replica code to the multiplier.

System And Method For Detection Of Rf Signal Spoofing

View page
US Patent:
20130157605, Jun 20, 2013
Filed:
Dec 13, 2012
Appl. No.:
13/713708
Inventors:
JEFF DICKMAN - Thousand Oaks CA, US
Reza Ahmadi - Westlake Village CA, US
Mathew A. Cosgrove - Woodland Hills CA, US
Sanjeev Gunawardena - Athens OH, US
International Classification:
H04B 1/10
US Classification:
455296
Abstract:
One embodiment of the invention includes a radio frequency (RF) receiver system. The system includes an antenna configured to receive an RF input signal and an RF signal front-end system configured to process the RF input signal to generate an equivalent digital signal. The system also includes a spoof detection system configured to analyze a power spectral density (PSD) of the equivalent digital signal and to compare the PSD of the equivalent digital signal with a predetermined baseline PSD to detect the presence of a spoofing signal component in the RF input signal.
Control profile
Sanjeev Gunawardena from Dayton, OH, age ~52 Get Report