发明名称 |
FIR/IIR FILTER PREDISTORTER FOR POWER AMPLIFIERS EXHIBITING SHORT-TERM AND/OR LONG-TERM MEMORY EFFECTS |
摘要 |
The present disclosure generally relates to predistortion that compensates for non-linearity of a power amplifier as well as short-term and long-term memory effects of the power amplifier. In one embodiment, a transmitter includes a power amplifier that amplifies a power amplifier input signal to provide a power amplifier output signal, a predistortion sub-system that effects predistortion of the power amplifier input signal to compensate for non-linearity of the power amplifier and memory effects of the power amplifier, and a adaptation sub-system that adaptively configures the predistortion sub-system. The predistortion sub-system includes a memory-less predistortion component that compensates for the non- linearity of the power amplifier, a Finite Impulse Response (FIR) filter that compensates for short-term memory effects of the power amplifier, and an Infinite Impulse Response (IIR) filter that compensates for long-term memory effects of the power amplifier. |
申请公布号 |
WO2013128300(A1) |
申请公布日期 |
2013.09.06 |
申请号 |
WO2013IB50279 |
申请日期 |
2013.01.11 |
申请人 |
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) |
发明人 |
KILAMBI, SAI MOHAN;ZHANG, YUXING;BAI, CHUNLONG |
分类号 |
H04B1/04 |
主分类号 |
H04B1/04 |
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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