作者: Takeshi Ochi , Masumi Ohyama , Johji Sakuragi , Masanori Aono
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摘要: An object identification system comprising a frequency sweep generator which generates an interrogation signal to be transmitted by the transmitter; response device, consisting of passive resonance elements, mounted on identified; receiver for receiving reply signals; phase shifter connected output generator; detector compares with output; and series connection low pass filter, amplifier, Schmitt circuit in order detect steep variation received from object.