The NAVSTAR Global Positioning System (GPS), a networked system providing three-dimension user position and timing, is widely used during the past ten years. However, interferences to GPS introduce gr
The classical edge detectors work fine with the high quality pictures, but often are not good enough for noisy images because they cannot distinguish edges of d
The shape and size of the energy transducer' s focus decide the constitution of the cure project using HIFU ( High intensity focused ultrasound). The parame