Invention Grant
US08824980B2 System and method to implement a radio transmitter with digital predistortion having reduced noise
有权
具有降低噪声的数字预失真的无线电发射机的系统和方法
- Patent Title: System and method to implement a radio transmitter with digital predistortion having reduced noise
- Patent Title (中): 具有降低噪声的数字预失真的无线电发射机的系统和方法
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Application No.: US13603651Application Date: 2012-09-05
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Publication No.: US08824980B2Publication Date: 2014-09-02
- Inventor: David J. McLaurin
- Applicant: David J. McLaurin
- Applicant Address: US MA Norwood
- Assignee: Analog Devices, Inc.
- Current Assignee: Analog Devices, Inc.
- Current Assignee Address: US MA Norwood
- Agency: Kenyon & Kenyon, LLP
- Main IPC: H04B1/04
- IPC: H04B1/04 ; H04B17/00
Abstract:
A system and method provide for a radio transmitter with digital predistortion. The radio transmitter includes a high output power narrowband upconverter and a low output power wideband upconverter. In a stage of the radio transmitter, digital predistortion is applied to transmit data by setting digital coefficients by a digital predistortion algorithm, resulting in a predistortion signal. A predistortion signal is separated into a narrowband component and a wideband component, where the narrowband component corresponds to a desired traffic signal and the wideband component corresponds to a digital predistortion signal reflecting separated digital predistortion correction products. The narrowband upconverter provides a transmission path for a desired traffic signal or transmit data (the narrowband component of the digital predistortion signal), while the wideband upconverter provides a transmission path for the wideband component representing digital predistortion correction products.
Public/Granted literature
- US20140065989A1 SYSTEM AND METHOD TO IMPLEMENT A RADIO TRANSMITTER WITH DIGITAL PREDISTORTION HAVING REDUCED NOISE Public/Granted day:2014-03-06
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