BONUS LECTURE: 4D Digital Imaging Radars: Technology and Applications

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We present highly integrated digital imaging radars enabled by advances in latest CMOS technology. The ability to integrate digital processing as well low power high rate ADC and DACs has enabled us to look into CDMA inspired modulation technology as signaling mechanism for radars. Such signals though used widely in many radar applications has only recently made inroads in automotive and commercial applications. The natural advantage to include large number of MIMO channels allows us to create imaging application not only for very short range applications but also for use in areas typically considered long range for automotive/commercial use. We describe architectures for such radars and present several examples of the high resolution nature of the radar imaging that is currently available. These radars are also able to analyze the wideband signals leading to cognitive approaches of signal analysis and selection using channel sensing mechanisms. Such techniques are imperative as future success of radars in these application areas would depend on their ability to handle interference from other radars with many disparate signal schemes. We will also show examples how digital radars can use channel sensing to analyze the environment to identify the nature of other radars in the neighborhood.