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This work presents a 980μW direct-conversion BLE receiver at a 1V supply, employing current-reuse and subthreshold techniques. The receiver has a measured noise figure of 5.2dB, integrated from 10kHz to 1MHz, that corresponds to a sensitivity of −95.8dBm. At a receiver gain of 47dB, an HP3 of −19.7dBm has been measured. The LO integrated phase noise at 2.4GHz is 0.83° with LO spot phase noise of −119...
A novel framework is proposed for the design of cost-sensitive boosting algorithms. The framework is based on the identification of two necessary conditions for optimal cost-sensitive learning that 1) expected losses must be minimized by optimal cost-sensitive decision rules and 2) empirical loss minimization must emphasize the neighborhood of the target cost-sensitive boundary. It is shown that these...
A new strategy is proposed for the design of cascaded object detectors of high detection-rate. The problem of jointly minimizing the false-positive rate and classification complexity of a cascade, given a constraint on its detection rate, is considered. It is shown that it reduces to the problem of minimizing false-positive rate given detection- rate and is, therefore, an instance of the classic problem...
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