ADDITIVE DIGITAL PREDISTORTION SYSTEM EMPLOYING PARALLEL PATH COORDINATE CONVERSION
A digital predistortion system and method employing parallel signal paths is disclosed. A first primary signal path receives a rectangular (I,Q) input signal and provides it to an additive predistortion correction circuit. A second parallel signal path includes coordinate rotation circuitry and a pr...
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| creator | HUNTON, MATTHEW, J |
| description | A digital predistortion system and method employing parallel signal paths is disclosed. A first primary signal path receives a rectangular (I,Q) input signal and provides it to an additive predistortion correction circuit. A second parallel signal path includes coordinate rotation circuitry and a predistortion coefficient look up table. Any effects of calculational errors on the primary input signal are minimized by avoiding manipulations of the input signal in the primary signal path. A third parallel signal path may be used to receive the input signal for calculating adaptive updates to the look up table entries. |
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A first primary signal path receives a rectangular (I,Q) input signal and provides it to an additive predistortion correction circuit. A second parallel signal path includes coordinate rotation circuitry and a predistortion coefficient look up table. Any effects of calculational errors on the primary input signal are minimized by avoiding manipulations of the input signal in the primary signal path. A third parallel signal path may be used to receive the input signal for calculating adaptive updates to the look up table entries.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre ; ger |
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| subjects | AMPLIFIERS BASIC ELECTRONIC CIRCUITRY ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION |
| title | ADDITIVE DIGITAL PREDISTORTION SYSTEM EMPLOYING PARALLEL PATH COORDINATE CONVERSION |
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