Title :
Waveform synthesis for transmission of complex waveforms
Author :
Welborn, Matthew L. ; Ankcorn, John C.
Author_Institution :
Lab. for Comput. Sci., MIT, Cambridge, MA, USA
Abstract :
A new transmit architecture for digital radios is proposed that emphasizes the use of pre-computed waveforms stored in memory instead of real-time computation. We present results that show how direct synthesis techniques can be extended to directly generate many types of digitally modulated waveforms such as PSK or QAM. These techniques are especially appropriate for software radios implemented on systems with general purpose processors and large memory systems
Keywords :
digital radio; mobile radio; phase shift keying; quadrature amplitude modulation; PSK; QAM; complex waveforms transmission; digital radios; digitally modulated waveforms; direct synthesis techniques; general purpose processors; large memory systems; pre-computed waveforms; software radios; transmit architecture; waveform synthesis; Computer architecture; Digital modulation; Digital systems; Equations; Filters; Frequency; Pulse modulation; Pulse shaping methods; Quadrature amplitude modulation; Signal synthesis;
Conference_Titel :
Radio and Wireless Conference, 1999. RAWCON 99. 1999 IEEE
Conference_Location :
Denver, CO
Print_ISBN :
0-7803-5454-0
DOI :
10.1109/RAWCON.1999.810945
