kompensationsschaltung for multipath distortion in phase - modulated signals

摘要

PURPOSE:To make it possible to remove distortion independently of any relation between a direct wave level and a reflection wave level by switching the insertion part of a delay circuit by a switch. CONSTITUTION:When the level of a reflection wave is smaller than that of a direct wave, selector switches SW1-SW4 are switched to the contact a side, and distortion residual in detection signals from output terminal 9 is measured and indicated by a meter, and the delay time of variable delay circuit 19 is so varied that the distortion above may be minimum. When the reflection wave level is larger than the direct wave level, selector switches SW1-SW4 are switched to the b side, and the delay time of variable delay circuits 19 and 20 are so set variably that distortion in output detection signals of output terminal 9 may be minimum.