MEASUREMENT OF SPECTRUM OF BURST SIGNAL AND SPECTRUM ANALYZER

摘要

PURPOSE: To measure the spectrum of the burst signal in a short time in a state free from observation-disabled band. ;CONSTITUTION: A frequency control part 33 outputs the information corresponding to a plurality of received frequencies determined by the set information supplied from a frequency setting part 47, to a receiving part 10 in the order of receiving reset signals. The receiving part 10 receives the measured burst signal at the receiving frequency corresponding to the frequency information supplied from the frequency control part 33, and detection-outputs the signal having the received frequency component contained in the measured burst signal. A level detecting means 45 detects the peak value of the detection output during the measurement time when the detection output exceeds a standard voltage Vr and memorizes the detected peak value into a wave form memory 21. When the detection output becomes less than the standard voltage Vr and the measurement time lapses, a reset signal is outputted into the frequency control part 33, and the received frequency of the receiving part 10 is step-varied to the next frequency.;COPYRIGHT: (C)1993,JPO&Japio