System and method for transmitting information signals
作者： James Carl Otto , James Arthur Proctor
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摘要: A system and method for transmitting information in which a relatively narrowband signal is transmitted followed by the transmission of wideband signal. The may be used receiver to alert upcoming In transmissions occur asynchronously receiver, less complicated because provided with an indication time and/or center frequency Either or transmit from device receiver. find particular advantage tracking locating systems plurality tags location set receivers.
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