Multi-signal instantaneous frequency measurement system
AssigneeRohde & Schwarz GmbH & Co. KG
InventorAndres Espana Fresno
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Abstract
A Multi-Signal Instantaneous Frequency Measurement, MIFM, system comprising a front end adapted to shift and combine signal spectra of different sub-frequency bands (SFBs) of a received wideband signal (WBS) into an intermediate frequency band (IFB) having an instantaneous bandwidth (IBW), wherein each shifted SFB signal spectrum is marked individually with SFB marking information associated with the respective sub-frequency band (SFB) and a digital receiver (3) having the instantaneous bandwidth (IBW) configured to process the shifted SFB signal spectra within the intermediate frequency band (IFB) using the SFB marking information to resolve any frequency ambiguity caused by the shifting and combining of the SFBs signal spectra.
Claims20
A Multi-Signal Instantaneous Frequency Measurement, MIFM, system, the MIFM system comprising:
- a front end adapted to shift sub-frequency band, SFB, signal spectra of different sub-frequency bands (SFBs) of a received wideband signal (WBS) into an intermediate frequency band (IFB) having an instantaneous bandwidth (IBW), wherein each shifted SFB signal spectrum is marked individually with SFB marking information associated with the respective sub-frequency band and
- a digital receiver having the instantaneous bandwidth configured to process the shifted SFB signal spectra within the intermediate frequency band (IFB) using the SFB marking information to resolve any frequency ambiguity caused by the shifting of the SFB signal spectra, wherein the front end comprises a first combiner adapted to combine a delay paths of a delay line unit onto a delta channel signal line and a second combiner adapted to combine a reference paths of the delay line unit onto a reference channel signal line.
A method for performing a Multi-Signal Instantaneous Frequency Measurement, MIFM, the method comprising the steps of:
- performing a frequency shift of SFB signal spectra of different sub-frequency bands (SFB) of a received wideband signal (WBS) into a common intermediate frequency band (IFB) having an instantaneous bandwidth (IBW) wherein each shifted SFB spectrum is marked individually with SFB marking information associated with the respective sub-frequency band (SFB);
- and
- processing the shifted SFB signal spectra within the intermediate frequency band (IFB) by a digital receiver having the instantaneous bandwidth (IBW) using the SFB marking information to resolve any frequency ambiguity by the shifting of the SFB signal spectra,
- combining a delay paths of a delay path unit onto a delta channel signal line via a first combiner, and combining a reference paths of the delay line unit onto a reference channel signal line via a second combiner.
Dependencies are inferred from the claim text.