Direct digital synthesizer
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Oscillators are the subjects of intensive research. From Colpitts oscillators to phase locked loops, methods have been proposed… Expand A high-speed coherent radar for dynamic testing of civil engineering structures is proposed. The radar operates a continuous-wave… Expand In this chapter the operation of the direct digital synthesizer is first described. It is simple to add modulation capabilities… Expand Direct Digital Synthesizers (DDS) offer advantages such as precise beam shaping and forming over conventional RF approaches. This… Expand An automatic system for the comparison of unlike impedances in the range 1 /spl Omega/-10 k/spl Omega/, based on the three… Expand Preface. INTRODUCTION AND TUTORIAL. Synthesis Techniques (V. Kroupa). DIRECT DIGITAL SINGLE--FREQUENCY SYNTHESIZERS. A Frequency… Expand A Direct Digital Synthesizer (DDS) with an on-chip D/A-converter is designed and processed in 0.8 µm BiCMOS. The digital parts of… Expand There are many methods for performing functional mapping from phase to sine amplitude (e.g. ROM look-up, coarse/fine segmentation… Expand The authors present a modified direct-digital synthesizer which uses noise shaping to reduce the effects of phase-accumulator… Expand A bipolar direct digital synthesizer with 5-kHz to 100-MHz output capability is described. Channel spacing is 5 kHz with a 'hop… Expand