NARROW BAND INTERFERENCE WAVE DETECTOR

摘要

PURPOSE:To simplify the constitution and to reduce the cost by using a convolver not only for a correlation device but also for a interference wave detector. CONSTITUTION:The frequency is swept within a band of a convolver 22 with a VCO 26 by stopping the operation of a variable notch filter 21 and a PN code generator 25. An output of the convolver 22 is detected at that time and when its detection output exceeds a threshold level, a detection signal is sent to the variable notch filter 21, in which a notch is controlled so as to correspond to a interference wave and a interference wave is eliminated from a reception signal.