DocumentCode
1548721
Title
Digital baseband Cartesian loop transmitter
Author
Mann, S.I. ; Beach, M.A. ; Morris, K.A.
Author_Institution
Centre for Commun. Res., Bristol Univ., UK
Volume
37
Issue
22
fYear
2001
fDate
10/25/2001 12:00:00 AM
Firstpage
1360
Lastpage
1361
Abstract
A novel approach to the Cartesian loop transmitter where the baseband circuitry is replaced with digital signal processing is discussed. The technique eliminates the need for an analogue phase shifter, and simplifies the hardware architecture. Performance results show a 20 dB reduction of the power amplifier intermodulation distortion for a π/4-DQPSK, 18 Kbaud signal
Keywords
feedback; intermodulation distortion; linearisation techniques; phase shift keying; radio transmitters; signal processing; π/4-DQPSK signal; Cartesian loop transmitter; DSP; amplifier intermodulation distortion; digital baseband transmitter; digital signal processing; power amplifier IMD; power amplifier linearisation; stability;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20010903
Filename
964296
Link To Document