In the recently decades, with the development of the DSP technology, predistorting technique is realized with digital mode, due to baseband signal is easily dispose and temperature and aging, variations of operating point etc.

• 随着数字信号处理（DSP）技术的发展，最近十多年来，人们都用数字方式来实现预失真技术，鉴于基带信号容易处理且能随温度变化、电源电压波动、发射管老化等环境变化做到自适应调节，因此，目前的预失真器基本上都是采用数字方式。