Patent ID: 11953543
Assignee: ROHDE & SCHWARZ GMBH & CO. KG
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 21:
22. A method for operating a measurement device for testing a device under test (DUT), the method comprising:
receiving, by an input terminal, a RF signal from the DUT;
generating, by at least one analog-to-digital (A/D) converter, a digital data signal including a plurality of samples of the received RF signal;
filtering, by at least one filter, the digital data signal generated by the at least one A/D converter based on an intermediate-frequency bandwidth (IFBW) set in the at least one filter;
analysing, by a detector, the filtered digital data signal based on a pre-set number of samples from the filtered digital data signal;
calculating, by a controller, a signal-to-noise ratio (SNR) value of the analysed filtered digital data signal; and
adjusting, by the controller, at least one of:
a) the IFBW of the at least one filter and
b) the number of samples of the detector based on the calculated SNR value,
wherein the controller is configured to control at least one of the IFBW and the number of samples in accordance with the calculated SNR such to meet a predetermined measurement criterion.