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发明授权
CN105765861B 多路径的数字预失真 有权

多路径的数字预失真
摘要：
一种大体涉及多频带数字预失真的装置。在该装置中，单频带的数字预失真器引擎(400)具有第一和第二采样路径(481、482)。输入级(491)被耦接为接收输入采样，并且被配置成将输入采样分离成第一采样和第二采样。输入级(491)分别提供第一采样的第一幅值和第二采样的第二幅值。第一组数字预失真器(441、443)被耦接为接收上述第一采样、第一幅值和第二幅值。第二组数字预失真器(445、447)被耦接为接收上述第二采样、第二幅值和第一幅值。输出级(492)被耦接为从第一组数字预失真器(441、443)和第二组数字预失真器(445、447)接收预失真输出，并且被配置成提供来自第一组数字预失真器(441、443)和第二组数字预失真器(445、447)的数字预失真复合信号。
摘要（英）：

An apparatus relates generally to multi-path digital predistortion. In this apparatus, a single-band digital predistorter engine has first and second sample paths. An input stage is coupled to receive input samples and configured to separate them into first samples and second samples. The input stage provides first and second magnitudes for the first and second samples, respectively. A first set of digital predistorters receives the first samples, the first magnitudes and the second magnitudes. A second set of digital predistorters receives the second samples, the second magnitudes and the first magnitudes. An output stage is coupled to receive predistorted outputs from the first set of digital predistorters and the second set of digital predistorters and is configured to provide a digital predistorted composite signal from the first set of digital predistorters and the second set of digital predistorters.

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