METHOD AND DEVICE FOR GENERATING MICROWAVE PREDISTORTION SIGNAL

摘要

Embodiments of the present invention disclose a microwave predistorted signal generating method and apparatus. A microwave receiver receives a first received signal that has undergone analog-to-digital conversion; performs channel compensation on the first received signal, to obtain a second received signal; estimates a first transmitted signal according to the second received signal, where the first transmitted signal is a transmitted signal of a microwave transmitter before digital-to-analog conversion; performs predistortion coefficient computation according to the second received signal and the first transmitted signal; performs, by using a first-order coefficient obtained through the predistortion coefficient computation, linear distortion compensation on the second received signal that is before the first transmitted signal is estimated; and sends other predistortion coefficients except for the first-order coefficient to the microwave transmitter, so that the microwave transmitter performs non-linearity predistortion on a transmitted signal. The first received signal is a signal that has undergone analog-to-digital conversion, that is to say, a receiving channel of the microwave receiver may be used to receive the first received signal without requiring the microwave receiver to add an extra channel, so the cost may be reduced.