| 摘要 |
The present invention relates to the field of communications, and provides a signal processing device and method which can ensure the system stability. The method comprises: receiving an input signal x, x being a complex vector; training according to x and a predistortion coefficient c(n+1) collected at the (n+1)th time to obtain a predistorted signal z, wherein z is a complex vector, n is a natural number, and the predistortion coefficient collected at the (n+1)th time is used to limit the predistortion gain within a system controllable range; and amplifying z to obtain an output signal y', y' being a complex vector. The present invention is applied to adjust the nonlinear distortion of a power amplifier. |
