公开(公告)号：US20150055731A1

公开(公告)日：2015-02-26

申请号：US14106251

申请日：2013-12-13

Applicant: Broadcom Corporation

Inventor： David HARRIS ,  David Garrett

IPC: H04B1/04 ,  H03F1/32

CPC classification number: H04B1/0475 ,  H03F1/3241 ,  H03F3/189 ,  H03F3/245 ,  H03F2200/336 ,  H03F2201/3233 ,  H04B2001/0425

Abstract: A digital transmitter with sample rate digital predistortion is disclosed. The transmitter includes a digital radio frequency (RF) signal generator configured to receive a baseband digital signal and transform the baseband digital signal to a digital RF signal. The digital transmitter further includes a sample rate predistorter configured to predistort the digital RF signal so as to compensate for distortion associated with the transmitter that is generated subsequent to an output of the sample rate predistorter, and resulting in a digital predistorted RF signal. The digital transmitter further includes a digital to analog converter configured to convert the digital predistorted RF signal to analog, resulting in an analog predistorted RF signal.

Abstract translation: 公开了一种采样率数字预失真的数字发射机。 发射器包括数字射频（RF）信号发生器，其被配置为接收基带数字信号并将基带数字信号变换为数字RF信号。 数字发射机还包括采样率预失真器，其被配置为预失真数字RF信号，以补偿与采样率预失真器的输出之后产生的发射机相关联的失真，并导致数字预失真RF信号。 数字发射机还包括配置成将数字预失真RF信号转换为模拟的数模转换器，从而产生模拟预失真RF信号。