Description: AT89S52 the design for the control of the core, have a DDS chip AD9850 automatically adjustable frequency swept sine signal, to achieve the full frequency range and a specific range of automatic search and manual search, and identification of external signal modulation: FM, AM, amplitude. Through the single-chip external signal frequency automatically display and storage, to achieve the performance requirements of the reconnaissance receiver.
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侦查接收机.doc
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