نتایج جستجو برای: pulse doppler
تعداد نتایج: 134303 فیلتر نتایج به سال:
Ultrasound is used increasingly for diagnosing large vessel vasculitis (LVV). The application of Doppler in LVV is very different from in arthritic conditions. This paper aims to explain the most important Doppler parameters, including spectral Doppler, and how the settings differ from those used in arthritic conditions and provide recommendations for optimal adjustments. This is addressed thro...
When information sequences are embedded into radar waveforms by means of coding diversity, the resulting radar emissions then change on a pulse-to-pulse basis during a coherent processing interval (CPI). As such, pulse compression of these different waveforms leads to different sidelobe structures, giving rise to range sidelobe modulation (RSM) of the clutter. The presence of RSM induces a part...
With considerable advances in technology, ultrasound, as a noninvasive procedure has been more frequently used for diagnosis of liver diseases and portal hypertension (P.H.). Venography and splenoportography, both are invasive procedures with considerable X-ray exposure. The information obtained from these procedures are limited only to condition of vesseles, while with ultr...
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