Direct waveform synthesis for software radios
نویسنده
چکیده
|This work presents results that show how direct digital synthesis (DDS) techniques can be extended to produce frequency modulated (FM) waveforms as well as many types of digitally modulated waveforms, such as PSK or QAM. We show how digitally modulated wave-forms can be eeciently synthesized from tables of pre-computed samples. This work also reports on the implementation of these algorithms in a software radio system.
منابع مشابه
Waveform Synthesis for Transmission of Complex Waveforms
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...
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