Experience

NAVSYS Corporation

• United States
• Defense and Space Manufacturing
• 1 - 100 Employee

• Research/GNSS/Inertial/DSP/Sr. System Engineer

  • Jan 2016 - Present

  Research engineer III (equivalent to senior engineer) specializing in Kalman filtering estimations, kinematic positioning, and related navigation/localization optimization techniques▪ Expert in GNSS/INS Kalman filter for ground-based, air, and space multi-sensor navigation applications▪ Implement weighted least-squared (WLS) and Kalman filters for GPS applications▪ Develop algorithm using camera sensors to estimate target locations to augment inertial navigation▪ Integrate GPS/INS Kalman filter into gimbaled systems for geo referencing application▪ Integrate simulated Star Tracker measurement update algorithm into GPS/INS Kalman filter for micro-satellite applications▪ Develop system engineering specifications for hardware/software integration▪ GNSS signal tracking: GPS [P(Y), CA], Glonass, Beidou, and Galileo▪ IMU modeling and simulation▪ Implement time difference of arrival (TDOA) and time of arrival (TOA) by leveraging terrestrial and space signal of opportunities.▪ Design and implement advanced filtering techniques to support backward in time KF processing and asynchronous/delayed measurement updates while maintaining real-time/update-to-date navigation solution▪ Navigation without GPS using alternative passive differential ranging measurements from space and terrestrial signals of opportunities▪ Google Map API



RT Logic

• United States
• Defense and Space Manufacturing
• 1 - 100 Employee

• System/DSP Engineer

  • Jul 2012 - Jan 2016

  RT Logic – System/DSP engineer specializing in wideband global satellite monitoring systems▪ Developed techniques to evaluate wideband global satellite (WGS) signal monitoring system performance▪ Designed and implemented in-beam satellite signal simulator functionality▪ Engineered software-based emulation/post-processing capabilities for diagnostics and performance evaluation using digitized data from RF signal monitoring▪ Developed application programming interface (API) for existing DSP algorithms▪ Implemented tools to evaluate digitizers and tuners performance▪ Maintained a close relationship with government customer (JSEC) and Northrop Grumman on system integration, testing, and evaluation

• Research Engineer III

  • Sep 2003 - Jul 2012

  NAVSYS Corporation – Research engineer III (equivalent to senior engineer) specializing in Kalman filtering estimations, kinematic positioning, and related navigational optimization techniques▪ Expert in GPS/INS Kalman filter for ground-based, air, and space multi-sensor navigation applications▪ Developed and implemented weighted least-squared (WLS) and Kalman filters for GPS applications▪ Developed algorithm using camera sensors to estimate target locations to augment inertial navigation▪ Integrated GPS/INS Kalman filter into gimbaled systems for geo referencing application▪ Integrated simulated Star Tracker measurement update algorithm into GPS/INS Kalman filter for micro-satellite applications▪ Developed system engineering specifications for hardware/software integration▪ GPS signal tracking: P(Y), CA