Teach Circuit Analysis (EE 310) and Microelectronics (EE 330) courses. Wrote laboratory manual for and currently teach Microelectronics laboratory course (EE 430-L). Currently responsible for Senior Design (Capstone) program. Developed an electric guitar amplifier and a DSP-based audio analysis system as a demonstration of start-to-finish product development.

Staff Engineer, RF and DSP. Project responsibility for three aircraft radios: Communication, Navigation, and Transponder. Performed requirements analysis and system engineering including cascade analysis, noise and distortion, spurious, and interfering signals. Designed RF circuitry including T/R switch, modulation feedback system, and 80 Watt RF power amplifier. Also developed all digital RF algorithms, validated in Simulink, and supervised FPGA designer. Involved in certification and test activities.

Responsible for design of numerous components of 2 – 30 MHz military radio including antenna tuner, digital receive filers, digital down-converters, digital single-sideband demodulation, and feedback control of 100 and 1 KW RF power amplifiers. Responsible for troubleshooting numerous hardware and system issues. Developed algorithms and hardware for control and calibration of RF devices. Reverse-engineer older undocumented designs to re-establish original design criteria and tradeoffs. Assist colleagues by providing analysis and algorithms. Present engineering lectures on various aspects of Datron’s technologies.

Responsible for calibration of direct conversion WiMAX base station radio. Specified and implemented algorithms for correcting IQ imbalance, LO feedthrough, DC offsets, and gain. Developed variable bandwidth digital measurement device and embedded feedback system for automatic TX LO feedthrough correction. Wrote RF system specification for sensitivity and jammer performance for low-power WiMAX base station. Participated in debug/validation of 802.11b/g IP core. Numerous analysis and simulation tasks for VP Engineering such as writing Bluetooth modulator in Matlab.

Owner/Operator of small (2 to 6 person) consulting firm. Numerous projects deploying analog and digital signal processing in small microprocessors, hardware and DSP’s. Developed and coded proprietary DSP-based (TMS320C24X) modem for data communication over cellular phone using EVRC voice compression. (US Patent 7,864,717). Team leader for development of reference products based on cellular modem technologies. Developed multi-protocol (GSTAR, MDC-1200, FleetSync) modem for FM Land Mobile communication. Developed 4-FSK 22 Kb/S modem using TMS320C5509 DSP for remote equipment monitoring. Designed low-noise analog preamplifier, active filters, ADC, and digital processing for hydrophone used for acoustic wind speed measurement buoy. Developed analog preamplifier and digital circuitry for light measurement system using high-voltage photomultiplier tube. Assisted clients with team leadership and structure. Wrote various feasibility analyses and technical white papers.

– Responsible for development of a proprietary family of DSP-based vehicular modems (600–19200 bps) for public safety VHF/UHF radio networks. Developed analog front ends including all active filtering and switching to reuse RX circuitry for TX. Developed modulator, equalizer, timing recovery, Reed-Solomon decoder, and channel access technique using TMS320C25 DSP. Responsible for project system engineering including protocol design and performance estimation for the mobile fading environment. Supported marketing by giving presentations to county governments, providing technical training to marketing personnel, and writing articles for trade press.

Team member on classified project involving synthetic target generation for a RADAR system. Designed 8051-based PCB using FutureNet schematic design tools. Debugged PCB and wrote 8051 assembly code for simulating radar effects such as scintillation and antenna pattern dependence. Created high-speed digital state machine for synthetic target management using CPLD and DASH logic compiler. Designed clock distribution system to distribute state machine over six PCB’s and backplane.

– Designed digital framing circuits and PLL’s for rate matching in T1 and DS3 Telco modems. Designed PC board for transmitting 19.2 Kb data by stealing LSB of PCM modem in Lenkurt channel bank. Developed FM voice communication orderwire using low-bandwidth frequency synthesizer and CA3189 demodulator. Designed BER test set for T1 multiplexer using 8051 microcontroller and CPLD framing circuitry.