University of Kansas Department of Electrical Engineering and Computer Science 1 Radar Systems and Remote Sensing Lab Information and Telecommunication.

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University of Kansas Department of Electrical Engineering and Computer Science 1 Radar Systems and Remote Sensing Lab Information and Telecommunication Technology Center Wireless Communications and Radar for the New Millennium Steve Lohmeier

University of Kansas Department of Electrical Engineering and Computer Science 2 Radar Systems and Remote Sensing Lab Information and Telecommunication Technology Center Personal Background Born and raised in Kansas City area Received B.S.E.E. from Kansas State University Received M.S. and Ph.D. from University of Massachusetts working on radar remote sensing problems (6 years) Worked on air and missile defense radars in Huntsville, AL (4 years) Currently on faculty at University of Kansas (1 year)

University of Kansas Department of Electrical Engineering and Computer Science 3 Radar Systems and Remote Sensing Lab Information and Telecommunication Technology Center Research Interests General –Antennas –Propagation –Sensor systems Specific –Digital beamforming and adaptive array processing (smart antennas) –Ultra-wideband radios and radar –Bistatic scattering from natural surfaces (clutter) and multipath interactions –Radar remote sensing

University of Kansas Department of Electrical Engineering and Computer Science 4 Radar Systems and Remote Sensing Lab Information and Telecommunication Technology Center Examples of Relevant Experience Adaptive/smart antennas RF propagation studies Ultra-wideband radar project to improve railway safety

University of Kansas Department of Electrical Engineering and Computer Science 5 Radar Systems and Remote Sensing Lab Information and Telecommunication Technology Center Adaptive Antenna Arrays Nulls in Directions of Cochannel Interferers Main Lobe in Direction of Desired Signal Adaptive processing techniques originally implemented in speech processing and sonar applications Migrated to radar and wireless fields Teaching course in spring on adaptive antenna arrays based on experience with air- defense radars, but focusing more on wireless application Applicable to PCS, wireless local loops, etc.

University of Kansas Department of Electrical Engineering and Computer Science 6 Radar Systems and Remote Sensing Lab Information and Telecommunication Technology Center RF Propagation Studies Involved in a program with MIT Lincoln Lab to characterize bistatic scattering from terrain for use in multipath models Involved in many other programs to characterize all facets of the RF propagation environment (attenuation, clutter, multipath, interference, etc.) Applicable to future generation PCS wireless local loop design, indoor wireless network design, etc. Dual polarization receiving system enclosed in radome Measurement Geometry Isorange contours Transmit Receive

University of Kansas Department of Electrical Engineering and Computer Science 7 Radar Systems and Remote Sensing Lab Information and Telecommunication Technology Center Improving Railway Safety Using Four Quadrant Gates Controlled by Ultra-wideband Radar Four-quadrant crossing controlled by two entrance and two exit gates Exit gates are raised if vehicle is detected in entirely or partially within crossing island Crossing Island Detection No Detection

University of Kansas Department of Electrical Engineering and Computer Science 8 Radar Systems and Remote Sensing Lab Information and Telecommunication Technology Center Motion and Change Detection Radar range profile is constantly compared to its previous version. If a sufficient change in the profile occurs a vehicle detection is declared. Radar #1 Radar #2 Zone #2 Zone #1

University of Kansas Department of Electrical Engineering and Computer Science 9 Radar Systems and Remote Sensing Lab Information and Telecommunication Technology Center UWB Radar Transceiver Correlator Clock Oscillator Integrator Pulse Generator Code Generator Multiplier Programmable Time Delay S/H Baseband Signal Processing Adjustable Delay

University of Kansas Department of Electrical Engineering and Computer Science 1010 Radar Systems and Remote Sensing Lab Information and Telecommunication Technology Center Conclusions Research partnerships (particularly ones that are funded) yield hard work, innovation, enthusiasm, satisfaction, and students trained and experienced in wireless and radar technologies.