发明名称 |
Quadrature LINC transmission method and apparatus |
摘要 |
A quadrature LINC transmission system processes a baseband input signal for transmission as a linearly amplified RF signal. An in-phase LINC element processes an in-phase baseband signal into an in-phase RF signal. A quadrature LINC element processes a quadrature baseband signal into a quadrature RF signal. An output combiner combines the in-phase RF signal with the quadrature RF signal to provide the linearly amplified RF signal. The in-phase LINC element has a constant envelope decomposition block for decomposing the in-phase baseband signal into in-phase baseband constant envelope components. Two up-converters convert the in-phase baseband constant envelope components to in-phase RF constant envelope components. Two non-linear amplifiers amplify the in-phase RF constant envelope components. A combiner combines the amplified in-phase RF constant envelope components to yield the in-phase RF signal. The quadrature LINC element is similar to the in-phase LINC element and provides the quadrature RF signal.
|
申请公布号 |
US7570711(B1) |
申请公布日期 |
2009.08.04 |
申请号 |
US20030414931 |
申请日期 |
2003.04.16 |
申请人 |
ROCKWELL COLLINS, INC. |
发明人 |
CHAVEZ CARLOS J.;FRANK GUNTHER B.;HOFFMAN DENNIS L. |
分类号 |
H04L27/36 |
主分类号 |
H04L27/36 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|