Lead and mentor a team of Guidance, Navigation, Control Engineers and Researchers to support the company wide research and development of new systems.In charge of several Long range EO/IR sensor system integrations and root cause analysis in system level to detailed implementations of navigation, control, pointing solution, electrical, mechanical and software.Navigation system INS solution development including automatic calibration of IMU sensor axis misalignment, scale factor and bias.

Provided subject matter expert consulting services to various corporations in motion control systems, airborne gimbal systems, EO/IR systems, UAV system design, Guidance, Navigations, and Control (GN&C) system design, physic based system mathematical modeling and simulations, DSP and SoC based real time embedded system design and implementations, Linux based hard real time operating system design, BLDC motor control electronics and embedded C programming, rapid prototyping, and developments of engineering system specifications, requirements, and optimization documents.General AtomicsDeveloped and upgraded ISR tracking systems and gimbal control software to enhance current capability in ground target tracking performance and field maintenance.Designed an airborne antenna gimbal system from the initial concept to a final production including Matlab system modeling, electrical system design, control software design using RTAI Linux RTOS and final system integration.Airborne telescope pointing and target tracking hardware, software and algorithm implementation by integrating Inertial Navigation System (INS), auto-focuser linear actuator, UDP interface and real time Linux PC 104 hardware which are deployed in IRAQ and Afghanistan performing continuous missions for over 9 years without any performance or maintenance issues.Arete Associates Fast Scan Mirror system development for an UAV based platform with an inertial stabilization for laser beam designator, laser beam tracker and camera system.EMS Technologies Developed Navigation Solution and tightly/loosely coupled Extended Kalman Filter under the B-2 stealth bomber Extremely High Frequency (EHF) satellite communications program.L-3 Security & Detection Systems Millimeter wave target image processing algorithm development and software implementation that is the first prototype of current L-3 ProVision airport whole body scanner system.

Lead Antenna Wireless group technical development.Implemented classical controller, Kalman filters, H2, H∞, and nonlinear robust controller for all antenna control systems, i.e. proposed MIT Haystack Antenna, with many hard nonlinear elements, (i.e. high Coulomb friction, backlash, controller saturation, nonlinear feedback sensors), colored sensor noises, shock, vibrations, mil temperature condition and gusting wind.Designed large autotrack antenna control systems for P, L, S, X, Ka & Ku band. Duties include control system and subsystem analysis, project proposal, system implementation, electronics design, troubleshoot, field integrations, and customer support. Designed and integrated small pedestal gimbals for airborne and military tactical vehicle applications such as Warfighter Information Network-Tactical (WIN-T) along with satellite tracking algorithm, navigation and IMU integration.Designed, modeled and evaluated DC brushless and stepper motor amplifiers using Kalman filter, vector commutation for the airborne gimbal system which was qualified to DO-160E.

Wrote an internal report/tutorial about switching power supply design and stability analysis for MOSFET, IGBT 500 VA to 5 KVA outputs.Lead Voice over IP telephone system design and analysis.Developed Matlab simulation/analysis models for telephone communication line systems and switching power supplies.Lead active R&D effort for ADSL line pre-qualification algorithm. Developed echo detection and post analysis algorithm with bundle management for ADSL line pre-qualification algorithm.

Designed VCM arm servo controllers for high-end hard disk drives. In charge of piezo based micro actuator servo development and evaluation for dual stage actuator architecture utilizing H2 and H∞ MIMO robust algorithm. Designed ramp load/unload servo control algorithm and headload algorithm.Programmed and debugged RTOS uProcessor based firmware for servo systems. Programmed numerous Matlab functions to analyze hard disk drive behavior. Debugged each phases of hard disk engineering builds including the area of VCM control, head/media channel, spindle, ASIC bus line, PCB module.

Designed, implemented, analyzed, and configured electronics system and control system for prototype autonomous under water vehicles. Developed hardware and software for a surface telemetry system. A synchronous telemetry algorithm included adaptive equalizer and digital encoring. A DSP based telemetry control box was designed.