US 12,355,500 B2
Measurement application device, and method
Andreas Lagler, Rosenheim (DE)
Assigned to Rohde & Schwarz GmbH & Co. KG, Munich (DE)
Filed by Rohde & Schwarz GmbH & Co. KG, Munich (DE)
Filed on Oct. 30, 2023, as Appl. No. 18/497,478.
Prior Publication US 2025/0141569 A1, May 1, 2025
Int. Cl. H04B 17/17 (2015.01); H04B 17/29 (2015.01)
CPC H04B 17/17 (2015.01) [H04B 17/29 (2015.01)] 22 Claims
OG exemplary drawing
 
1. A measurement application device comprising: a first measurement signal circuitry path configured to receive an analog measurement signal, wherein the first measurement signal circuitry path is configured to convert the analog measurement signal into a first digital measurement signal;
a first signal processor coupled to the first measurement signal circuitry path, wherein the first signal processor is configured to convert the first digital measurement signal into a first IQ (in-phase and quadrature) data stream;
a first demodulator coupled to the first signal processor, wherein the first demodulator is configured to perform an IQ demodulation on the first IQ data stream, and provide a first complex signal data stream;
a first selector coupled to the first demodulator, wherein the first selector is configured to group samples of the first complex signal data stream according to predetermined criteria, and to output at least one respective first group of samples of the first complex signal data stream;
a second measurement signal circuitry path configured to receive the same analog measurement signal that is received by the first measurement signal circuitry path, wherein the second measurement signal circuitry path is configured to convert the analog measurement signal into a second digital measurement signal;
a second signal processor coupled to the second measurement signal circuitry path, wherein the second signal processor is configured to convert the second digital measurement signal into a second IQ data stream;
a second demodulator coupled to the second signal processor, wherein the second demodulator is configured to perform an IQ demodulation on the second IQ data stream, and provide a second complex signal data stream;
a second selector coupled to the second demodulator, wherein the second selector is configured to group samples of the second complex signal data stream according to the same predetermined criteria as the first selector, and to output at least one respective second group of samples of the second complex signal data stream; and
a cross-correlator coupled to the first selector, and the second selector, wherein the cross-correlator is configured to calculate a cross-correlation for the samples of each group pair comprising one of the respective first group, and the respective second group.