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1.We propose a research program to match the projections of the International Technology Roadmap for Semiconductors (ITRS) to the high speed signal processing requirements for Ultra-Wideband Systems. (UWB). The silicon technology roadmap is a widely used and impressively accurate predictor of signal processing hardware capabilities, with predictions out beyond a decade. Although the predictions are better for digital hardware, they have also been useful for mixed signal hardware, such as that used in communication systems. However, the signal processing requirements to utilize the full allocated bandwidth (7-10GHz) for UWB communication systems can not be achieved using traditional circuit architectures that have relied on the ITRS improvements at the semiconductor device level. This research program investigates the use of new circuits that are matched at both the system level and the device level to ITRS predictions and to the signal processing requirements of UWB systems. The innovation of these new circuits are derived from a generalized information-theoretic approach to wide bandwidth A/D conversion which predicts the minimum sampling architecture and requirements needed for an analog information source. The approach overcomes the limitations found in the typical time-based Nyquist sampling approach by using the sampling of signal projections, such as in the joint frequency-time plane. |
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