Title :
A new technique for digital compensation in IQ modulator
Author :
Lim, A.G.K.C. ; Sreeram, V. ; Wang, G.
Author_Institution :
Sch. of Electr., Electron. & Comput. Eng., Western Australia Univ., Crawley, WA
Abstract :
In this paper, a new technique for designing the digital compensation filters for IQ modulators is proposed. Furthermore, we propose a time-domain approach based on decimation and interpolation to overcome the problem of ill-conditioned matrix and to reduce the computational load of the long FIR filters placed on the DSP
Keywords :
FIR filters; compensation; digital signal processing chips; interpolation; modulation; signal processing; DSP; FIR filters; IQ modulator; compensation filters; computational load reduction; decimation; digital compensation; digital signal processing; ill-conditioned matrix; interpolation; time-domain approach; Digital filters; Digital modulation; Digital signal processing; Finite impulse response filter; IIR filters; Image reconstruction; Nonlinear filters; Phase modulation; RF signals; Radio frequency;
Conference_Titel :
Circuits and Systems, 2004. Proceedings. The 2004 IEEE Asia-Pacific Conference on
Conference_Location :
Tainan
Print_ISBN :
0-7803-8660-4
DOI :
10.1109/APCCAS.2004.1412805
