发明名称 |
Distortion compensator |
摘要 |
A coefficient computing section, for computing a characteristic reverse to an input/output characteristic of the power amplifier, is configured by a fixed coefficient storing section and an error coefficient computing section. The fixed coefficient storing section is previously stored with the characteristic reverse to a pre-measured input/output characteristic. The error coefficient computing section computes an error coefficient between a characteristic stored in the fixed coefficient storing section and a current characteristic of the power amplifier. When the determining section determines that the adjacent-channel leak current power ratio is greater than a predetermined value, an operation halt is instructed to the power amplifier.
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申请公布号 |
US7248643(B2) |
申请公布日期 |
2007.07.24 |
申请号 |
US20040502512 |
申请日期 |
2004.07.23 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
TAKABAYASHI SHINICHIRO;UKENA MASATO;ORIHASHI MASAYUKI |
分类号 |
H04K1/02;H03F1/32;H03F3/24;H03H7/30;H04B1/04;H04B3/06;H04B3/46;H04B7/005;H04L27/00;H04L27/01;H04L27/36 |
主分类号 |
H04K1/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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