Spectral stitching method to increase instantaneous bandwidth in vector signal generators
US9609653B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2015 |
| Grant date | Mar 28, 2017 |
| Priority date | — |
| Expiry date | Apr 12, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R23/165
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Embodiments are described of devices and methods for processing a signal using a plurality of vector signal generators (VSGs). A digital signal may be provided to a plurality of signal paths, each of which may process a respective frequency band of the signal, the respective frequency bands having regions of overlap. The gain and phase of each signal path may be adjusted such that continuity of phase and magnitude are preserved through the regions of overlap. The adjustment of gain and phase may be accomplished by a complex multiply with a complex calibration constant. The calibration constant may be determined for each signal path by comparing the gain and phase of one or more calibration tones generated within each region of overlap. Each signal path may comprise a VSG to convert the respective signal to an analog signal, which may be combined to obtain a composite signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.