Title :
Digital correction for improved spectral response in signal generation systems
Author :
Spalding, George R. ; Geiger, Randall L.
Author_Institution :
Iowa State Univ., Ames, IA, USA
Abstract :
Signal generation systems using direct digital synthesis (DDS) techniques are marked by flexibility, repeatability, and wide range of stable operating frequencies. The spectral accuracy of these systems is limited by the analog components used to convert the signal into continuous-time. It is demonstrated how the addition of digital signal processing and a feedback loop around the analog signal path can increase the spectral quality
Keywords :
analogue-digital conversion; digital-analogue conversion; direct digital synthesis; fast Fourier transforms; feedback; frequency response; DDS techniques; FFT; digital correction; digital predistortion; digital signal processing; direct digital synthesis; feedback loop; signal generation systems; spectral response improvement; stable operating frequencies; Analog-digital conversion; Clocks; Digital filters; Error correction; Feedback loop; Frequency synthesizers; Predistortion; Signal generators; Signal processing; Signal synthesis;
Conference_Titel :
Circuits and Systems, 1993., ISCAS '93, 1993 IEEE International Symposium on
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-1281-3
DOI :
10.1109/ISCAS.1993.393675
