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Real-time digital phase and gain adaptation method using feedback and arrangement using such a method
Kokkeler, André (2004) Real-time digital phase and gain adaptation method using feedback and arrangement using such a method. Patent.
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| Abstract: | Arrangement for real-time phase and gain adaptation as a function of frequency and gain adaptation as a function of amplitude of an input signal in relation to an output signal, the input signal having a first absolute phase and first power as a function of frequency, the output signal having a second absolute phase and second power as a function of frequency, the output signal, in use, being amplified relative to the input signal, the arrangement including a gain correction, and a power amplifier, the gain correction being arranged for receiving the input signal at a third input and a gain reference signal at the second input and for correcting the first power of the input signal, relative to the second power of the output signal, to form a predistorted outgoing signal and for outputting at the first output the predistorted outgoing signal, the gain reference signal having a gain value identical to the second power of the output signal relative to the first power of the input signal, wherein the arrangement includes a phase correction arranged for receiving the input signal at a third input and a phase reference signal at the second input and for correcting the first absolute phase of the input signal, relative to the second absolute phase of the output signal, as a function of frequency to form a phase-corrected outgoing signal and for outputting at the first output the phase-corrected outgoing signal, the phase reference signal having a phase value identical to the second absolute phase of the output signal relative to the first absolute phase of the input signal, the gain correction and the phase correction using a single feedback signal in the feedback path for deriving the gain reference signal and the phase reference signal, respectively. |
| Item Type: | Patent |
| Faculty: | Electrical Engineering, Mathematics and Computer Science (EEMCS) |
| Research Group: | |
| Link to this item: | http://purl.utwente.nl/publications/67111 |
| Official URL: | http://v3.espacenet.com/textdoc?IDX=WO2004049558 |
| Export this item as: | BibTeX EndNote HTML Citation Reference Manager |
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