Method of determination of several types of fault of a transmitter modulator

摘要

The transmitter modulator is modeled with its functions and errors using a computer. The model and real modulators are supplied with the same digital data, and their output signals are compared. The error sources of the model are altered to optimize the fit of both output signals. The values of the model modulator corresponding to the altered error sources are associated with the appropriate function modules of the transmitter modulator