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· Extremely motivated, knowledgeable and result oriented communications professional with extensive practical experience in RF technology development, analog and digital hardware and system integration.
· Proven ability to manage a wide variety of design and development tasks requiring project planning, technology evaluation and selection, and timely development and implementation including failure analysis and customer interface.
· Excellent qualifications in project management, leadership, team building, and design innovation with over 20 years experience.
· Practical experience in hardware design and development including analog and digital hardware.
· Knowledge of digital signal processing.
· Over 10 years experience in RF engineering design and development.
· Knowledge of Ethernet protocol and MAC protocol for wireless LAN.
· Communication engineering and PhD in wireless broadband communications.
· Nearly 20 years System engineering experience including design, integration, evaluation and testing.
· Technical lead, project management and working to tight time schedules.
· Strong negotiation, communication, presentation, organizational, time management, analytical and logical thinking skills.
· Knowledge of microprocessors, multimedia technologies, hardware interfacing and data communications.
Technical Consultant, Dallas, Texas June 2007 – Present
Senior Algorithmic Designer, TenXc Wireless Inc., Canada March 2006 – June 2007
· Project leader in the development of TenXc’s appliqué MIMO antenna solution: The work involved development of a MIMO beamforming antenna intended as a part of a full fledged Enterprise Access Point (AP). The work involved development of a MIMO beamforming antenna intended as a part of a full fledged Enterprise Access Point (AP). The program comprised:
1. The development of a Matlab based simulator which incorporated both scenarios at system level as well as at link level and conforming to the futuristic IEEE 802.11n standard.
2. This was followed up by the development of a front-end signal processing unit based on Simulink.
3. The Simulink block sets were translated into Xilinx block sets as hardware implementation. This was based on the Xilinx System Generator. This front-end unit incorporated all the features of an 11n receiver up to the FFT block followed by a beam selection algorithm block for selection of best beams (company patent pending).
4. This work was completed in a record time of 6 months.
5. 4 patents were generated in this project.
6. I conceptualized and designed the entire system. I also personally shared in all the developmental activities and also designed the RF front end.
7. Work on integrating with an Atheros 11n chip is being taken up. The antenna was proved during trials at Georgia Tech, Atlanta, USA. It yielded a performance improvement of 10 dB over an equivalent omni based system for all types of modulation.
· Authored a book “Design of Multi-Frequency CW Radars”, SciTech Publishing Inc., 2007. I am the sole author.
Technical Consultant, Dallas, Texas June 2003 – March 2006
· Authored a book “Space-Time Codes and MIMO systems”, Artech House 2004. The book is currently a best seller. I am the sole author.
Assistant Research Professor, University of Aalborg, Denmark June 2002 – June 2003
· Development of Butler matrix based adaptive coverage antenna system for European Commission project CELLO.
· Development of OFDM-MIMO system for 4G based on Xilinx RC-100 board. This is presently in the baseband, but will be followed by RF tract later on in this project.
· Extensive simulation of OFDM-MIMO systems for an integrated IEEE 802.11a system with MIMO using VBlast algorithm and Space Time Coding.
Senior RF Engineer, SUMMITEK INSTRUMENTS INC., Denver CO, USA March 2001 – Dec 2001
· Design of Wilkinson splitters and coupled line Directional couplers.
· Design of ATE for testing of modules used in Passive Intermodulation Measurement systems, based on LABVIEW. This includes development and testing of software, updated based on customer suggestions.
· System analysis and design of Passive Intermodulation Measurement systems with a view to product improvement.
Researcher, International Research Center for Telecommunications‑transmission & Radar (IRCTR)1997 – August 2000
Delft university of technology – Delft, The Netherlands
Wireless Communications
Research work in Wireless Multimedia Communications with Prof. Ramjee Prasad
· Study of CDMA and OFDM and DS-CDMA/SFH systems.
· Simulation of performance of OFDM and CDMA systems in fading channels.
· Simulation of the effects of phase noise, timing offsets and frequency offsets in OFDM systems.
· Simulation of various OFDM synchronization techniques.
· Conducted research work into 4th generation wireless multimedia communications employing OFDM/CDMA/SFH hybrid techniques. This is a totally new concept, which retains the advantages of CDMA systems including infrastructure, and improves on the throughput using OFDM with SFH.
· Developed a novel synchronization technique for OFDM systems in fast fading channels using an integrating algorithm based on Fuzzy Logic.
Radar Engineering
Design, development, and execution of the signal processing for Stepped Frequency Continuous Wave (SFCW) ground‑penetrating radar and Frequency-Modulated Continuous Wave (FMCW) Multi-frequency radar.
This work involved:
· Project Leader and Chief Design Engineer for the design and development of complete system concept comprising both RF tract and signal processing.
· Formulated overall system requirements and specifications.
· Interviewed and selected a team of 10 engineers and technicians.
· Selected components for the RF stage including mixers, oscillators, amplifiers, A/D converters and power splitters. This included laying down of specifications and a cost survey.
· Planned the entire cabinet design and component layout from the point of view of ergonomics and EMI/EMC
· Based on the radar system parameters, selected a suitable Data Acquisition System for the reception and analysis of baseband signals.
· Carried out a noise analysis of the RF stage including level diagrams and a study of mixer intermodulation products and selection of filters based on computer simulation.
· Carried out a group delay analysis of the entire RF tract, caused due to the filters.
· Designed PCBs for the data conversion stage and created schematics, drawings and BOMs.
· Studied the system integration aspects and laid down system test specifications and measurement procedures for each stage and the overall system.
· Laid down time frames for the various activities and formulated a monitoring system based on periodic progress reviews.
Technology Consultant, India Space and Defense Research Organization-Bangalore, India 1995 – 1997
· Project leader selected to devise, develop, and implement ultra‑low sidelobe antennae for airborne radar.
· Chief Design Engineer: Implemented system integration of anti‑tank missiles. The job required developing a single electronic unit (portable and battery operated) capable of handling commands from two different types of missiles. This work involved:
· Study of existing missile technology.
· Designing the interfaces.
· Selecting a microprocessor and creation of schematic drawings at pin level and using 8 PCBs.
· Designing the entire system for low power consumption, since it is battery based.
· Formulating test specifications and planning a work schedule.
Senior Scientist, Center for Airborne Systems– Bangalore, India 1990 – 1995
Design Engineer involved in the design, development, and comprehensive testing of airborne radar systems and signal processors. The work involved:
· Team leader for designing the Radar Data Processor (RDP) and creating and developing a new algorithm for data association.
· Developed Kalman tracking filters.
Senior Scientist, Naval Science and Technological Laboratory – Visakhapatnam, India 1982 – 1989
Chief Design Engineer and Team Leader: Diverse duties included the creation and field-testing of torpedoes, mines, and associated electronics and signal processors. The work involved:
· Designed an electronic proximity fuze for detonation of the torpedo. The hardware was purely analog and based on op-amps and transistors.
· Designed a torpedo simulator. The unit was battery operated and based on CMOS sequential logic. The unit comprised 20 PCBs. It was used for verifying the torpedo performance and setting parameters prior to firing.
· Designed a Naval mine based on 80C86 microprocessor. The processor was interfaced to acoustic, magnetic and pressure sensors and designed for low power consumption, being battery based. The hardware was mixed digital and analog with provision for performance monitoring during testing via a cable run and line drivers and RS232C interface.
· Developed wire guidance Modem. Mixed technology, both digital and analog.
All the above projects involved project planning, design, formulating BOMs, test specifications, monitoring and design reviews. It also involved extensive system integration including at sub-assembly level.
- PhD in Wireless Multimedia Communication, University of Aalborg–Aalborg, Denmark, Sept 2000
PhD thesis “Wideband Multimedia Solution Using Hybrid OFDM/CDMA/SFH Techniques”
University of Aalborg, Center for Personkommunikation, Denmark, 8th September 2000
- Master of Technology in Design, Delft University of Technology–Delft, The Netherlands, 1999
Graduated cum laude
- Bachelor of Technology in Electronics and Telecommunications, Naval Electrical School–Jamnagar, India 1971
· Awarded “Cum Laude” on graduation from Delft University of Technology for the degree of Master of Technology in Design. Established a university record for the highest marks for this degree with the first ever “Cum Laude” awarded for this degree. 1999
· 1985 SCIENTIST OF THE YEAR, Awarded by the Prime Minister of India for the development of the Naval Mine at Visakhapatnam, India. 1985
· C, C++, Visual C++ 6
· Assembly - Intel Microprocessors, TMS320C30
· Protected Mode programming of 80386 Microprocessor using assembly coding
· MATLAB
· Windows 3.1 programming
· PCB CAD systems, EDWIN and P-CAD 2000
· Xilinx FPGA development. Completed “Advanced FPGA” course in U.K.
· LABVIEW
Career profile indicates capability of leading a team towards developing broadband wireless systems. Proven skills and rich practical experience since 1982 both in India and Europe in:
· Software development.
· Hardware design and development including analog and digital hardware.
· Knowledge of digital signal processing.
· RF engineering design and development.
· Communication engineering and a PhD in wireless broadband communications.
Acquired skills make for excellence in:
· System design, integration, evaluation and testing.
· Project management and working to tight time schedules.
[1]” Performance Comparison of V-BLAST Algorithm and Space-Time Coding in an OFDM-MIMO Environment”, VTC
’03, Orlando, USA (submitted)
[2]” Space-Time Block Coding for OFDM-MIMO Systems for Fourth Generation: Performance Results”, Multi-Carrier
Spread Spectrum 2003, Oberpffafenhofen, Munich, Germany (submitted)
[3]” An OFDM-MIMO Wireless Packet Transmission Scheme at 5 GHz: An Analysis”, Globecom 2003 (submitted)
[4] Papers at [1], [2] and [3] above submitted to IEEE Trans. Commn.
[5]” OFDM-Based Wireless Packet Data Transmission at 5 GHz for Future-Generation Systems”, 7th International OFDM
Workshop, Hamburg, Germany, September 2002.
[6] “Algorithm Assisted Synchronisation of OFDM Systems for Fading Channels”, 5th International OFDM
Workshop, September 2000Hamburg, Germany
[7] “Performance Evaluation of Hybrid OFDM/CDMA/SFH Approach for Wireless Multimedia” VTC Fall 2000,
September 2000, Boston, USA
[8] “Wideband Multimedia Application: the Hybrid OFDM/CDMA/SFH Approach”, ISSSTA 2000,September
2000, Parsipanny, NJ, USA
[9] “ A Novel Solution to Wireless Multimedia Application: The Hybrid OFDM/CDMA/SFH Approach”,
PIMRC2000, September 2000, London
[10] "Wideband Multimedia Solution using hybrid CDMA/OFDM/SFH Techniques", ACTS Summit 1999, Sorrento, Italy
[11]"A Novel Algorithmic Synchronisation Technique for OFDM based Wireless Multimedia
Communications", International Communications Conference, Vancouver, Canada, June 1999
[12] “ Ambiguity Analysis of Pandora Multifrequency FMCW/SFCW Radar “ , IEEE Radar Conference 2000,
Alexandra, Virginia, USA
[13] “ Pandora Multifrequency FMCW/SFCW Radar ”, IEEE Radar Conference 2000, Alexandra, Virginia,
USA
[14]"System design and verification of the Pandora Multifrequency FMCW Radar", IEEE
Radar Conference 1999 Brest, France.
[15]"Design of Multifrequency FMCW Radar", 28th European Microwave Conference, October 1998, Amsterdam,
Netherlands.
[16]"Characterisation of fluctuation statistics of radar clutter for Indian terrain", IEEE
Transactions on Geophysics and Remote Sensing, March 1995.
[17]" Ellipsoidal Gating for TWS Airborne Radar", IEEE Radar Conference 1995
[18]"Comparative study of types of tracking filters", National Symposium on Airborne
Software, H.A.L. Bangalore, India, January 1995.
“Space-Time Codes and MIMO Systems”, published by Artech House, August 2004.
“Design of Multi-Frequency CW Radars”, SciTech Publishing Inc., May 2007.
PROFESSIONAL AFFILIATIONS
Senior Member IEEE
Fellow IEE (India)
REFERENCES
References will be furnished on request. | 
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