Patent ID: 9491646
Filing Date: 2016-11-08
CPC Classification: G01R,H04L,H04W

Claim Text:
1. A measuring device for measuring a signal, wherein the signal includes a first component signal and at least a second component signal, the measuring device comprising: a high-frequency processing device configured to mix the signal with an initial local oscillator signal to form an intermediate-frequency signal, and to digitize the intermediate-frequency signal to form a digital composite signal, wherein the digital composite signal includes information content of at least the first component signal and the second component signal; a digital mixer configured to mix the digital composite signal with a first local oscillator signal to generate a first digital composite test signal and to mix the digital composite signal with a second local oscillator signal to generate a second digital composite test signal, wherein the first and second digital composite test signals are each subject to a displacement in frequency from the frequency of the digital composite signal; and a digital filter configured to filter the first digital composite test signal to form a first digital test signal and to filter the second digital composite test signal to form a second digital test signal.