19 research outputs found

    Fast Multifeature Joint Sparse Representation for Hyperspectral Image Classification

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    A UWB mixer with a balanced wide band active balun using crossing centertaped inductor

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    A high gain 3-5GHz mixer merged with a very balanced wideband active balun is presented and demonstrated. It uses a Gilbert type folded structure with the active balun as the input trans-conductance stage and with a PMOS switch stage. The implemented circuit in the 0.18um CMOS technology exhibits less than 1dB amplitude imbalance in 2.06 - 5.2GHz, less than 1.5dB in 0.55 - 5.7GHz and less than 2 degree phase imbalance through 1.37GHz to 5.07GHz. The mixer exhibits a high IIP3 of -3dBm and a high isolation of LO-RF about -100dB in the wide bandwidth. It consumes only 6.2mW under a 1.8V power supply.Engineering, Electrical & ElectronicEICPCI-S(ISTP)

    Using Combined Difference Image and kk -Means Clustering for SAR Image Change Detection

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    Imbalanced Hyperspectral Image Classification Based on Maximum Margin

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