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Inverse synthetic aperture radar (ISAR) imaging at low SNR ratio is not resolved completely. The SNR increases in time-frequency domain over the one in the time or the frequency domain alone both theoretically and numerically. This shows advantage of time-frequency analysis technique for ISAR imaging at low SNR. The reassigned Gabor spectrogram(More)
—This paper presents a functional verification of USB2.0 Card Reader, which includes verification environment, functional coverage model design and course of debug. This system not only finds bugs in the DUT, but also verifies the compliance between hosts and device. The methods of the verification and coverage model design facilitate the verification of(More)
Main research in this paper is the DA(data acquisition) system design which based on the USB and MMC. According a USB's chip correlation hardware information, USB protocol, DA systematic structure and singlechip computer information, a hardware development solution was come out in the design. This solution consists of the data acquisition module hardware(More)
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