Symbol error based compensation methods for nonlinear amplifier distortion

摘要: Compensation methods and apparatus are disclosed for mitigating non-linear distortion of high power amplifiers used in communication transmitters, based on the minimization symbol error, particular, systems transmitting data embedded existing co-channel signals. To overcome difficulty constructing pre-distortion mapping from an adaptive algorithm is to update compensation parameters mapping. Another method exploits a test signal interval signal. During known constant signal, estimated as complex number construct parameters. The latter further expanded by employing non-test intervals.