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Blood Flow Signals non-parametric spectral estimat
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Since the wave source and the receiver (or the viewer) of the relative movement, so that the actual observed frequency of the frequency of the wave source there is a difference. This phenomenon is called Doppler effect.
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RFID Bayesian estimation
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Bayesian estimation of RFID, passive RFID, the reader through a certain rule identification tags, such as dynamic Aloha protocol and binary tree protocol. Dynamic Aloha protocol, if the tag reader to identify a group is defined as a time period of one cycle is divided into a plurality of frames, each frame is divided into a plurality of time slots, each time slot only the selected tag communication occurs within the reader, the tag is randomly selected when the gap uniformly distributed, that is A ~ (0, L); the label slot, L is the frame length, each time slot according to the tag and the reader communication case, the slot types can be divided into success (within the slot a tag) idle (0 tags) and conflict (two or more labels). In passive Aloha protocol, frame length L is extremely important for determining the efficiency of tag identification, if L is too long will lead to an increase in idle time slot, L is too short causes too many conflicts slot, reducing the efficiency of the abo
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