发明名称 |
Cube coordinate subspaces for nonlinear digital predistortion |
摘要 |
A method or corresponding apparatus relates to a mathematical approach to efficiently search for and localize regions in a multi-dimensional signal space to enable inversion of power amplifier nonlinearities with a significant reduction in computational complexity and an efficient hardware implementation. To linearize a wideband power amplifier, an example embodiment of the present invention may represent a response of the wideband power amplifier using coefficients in a cube coefficient subspace, and search over the full multi-dimensional subspace according to an optimization criterion in order to identify a vector of cube coefficient subspace coefficients. The vector of coefficient subspace coefficients may be used to linearize the wide-band power amplifier.
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申请公布号 |
US2009289706(A1) |
申请公布日期 |
2009.11.26 |
申请号 |
US20080154669 |
申请日期 |
2008.05.23 |
申请人 |
GOODMAN JOEL I;MILLER BENJAMIN A;HERMAN MATTHEW A |
发明人 |
GOODMAN JOEL I.;MILLER BENJAMIN A.;HERMAN MATTHEW A. |
分类号 |
H03F1/08 |
主分类号 |
H03F1/08 |
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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