APPARATUS AND METHOD FOR COMPENSATING CHACTERISTICS OF TRANSMISSION IN ARRAY TRANSMITTER

摘要

According to the present invention, in order to compensate transmission characteristics to allow a multi-array transmitter of a wire or wireless system to effectively transmit a transmission signal, a nonlinear pre-filter and a transfer function compensating filter are independently installed on a transmission path. A complex compensation value for allowing a high power amplifier of which non-linearity is determined according to the amplitude of a signal to be linear and a complex compensation value for allowing transfer characteristics between arrayed transmitters to coincide with each other are adaptively applied. By adaptively applying an arbitrary transmission filler property, the number of additional digital circuits for compensating linearity and an array error of a transmitter may be reduced. In addition, according to the present invention, the functions of compensating linearity and an array error are performed by one multi-functional filter so that the number of unnecessary digital circuits, caused because the functions of compensating linearity and an array error are performed by an additional profiler according to the prior art, can be prevented from being increased, thereby reducing the implement cost and more effectively transmitting a transmission signal.