首页>
外国专利>
Linearization of radio frequency transceivers and test systems through dynamic extraction of complex nonlinear models thereof
Linearization of radio frequency transceivers and test systems through dynamic extraction of complex nonlinear models thereof
展开▼
机译:通过动态提取复杂的非线性模型对射频收发器和测试系统进行线性化
展开▼
页面导航
摘要
著录项
相似文献
摘要
Dynamic characterization of complex high-order nonlinearity in transmitter (TX) and receiver (RX) signal chains of transceiver systems can be efficiently and accurately performed. A loopback connection may be used to facilitate self-characterization. Appropriate RX and TX configuration settings may be developed to facilitate de-coupling of individual RX and TX nonlinearities from measured cascade nonlinearity. The system's high-order response to a two-tone signal generation may be measured, and complex mathematical analysis may be performed to identify and isolate passband nonlinear components to extract a high-order memory-less model for the system. The extracted system model may be used in the corrective and non-iterative pre-distortion of generated signals and in the post-distortion of received signals to improve linearity performance of the transceiver. The memory-less model and the analytical system are effective in improving performance of class-A-amplifier-based signal chains that are common in test and measurement systems and channel emulation systems.
展开▼