Erratum to: Exact analysis of spurious signals in direct digital frequency synthesizers due to amplitude quantization
نویسندگان
چکیده
منابع مشابه
Spurious cross-frequency amplitude-amplitude coupling in nonstationary, nonlinear signals.
Recent studies of brain activities show that cross-frequency coupling (CFC) play an important role in memory and learning. Many measures have been proposed to investigate the CFC phenomenon, including the correlation between the amplitude envelopes of two brain waves at different frequencies - cross-frequency amplitude-amplitude coupling (AAC). In this short communication, we describe how nonst...
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There are several compression methods for phase to amplitude converter for sine function. In this paper, the linear and parabolic approximation of equi-section division utilizing the symmetry property and amplitude approximation of a sinusoidal waveform for direct digital frequency synthesizer (DDS) and also for other waveform applications, e.g. function generators and telecommunication devices...
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By Zhihe Zhou, Ph.D. Washington State University August 2006 Chair: George S. La Rue We investigated the design and implementation of non-linear D/A converters (DAC) for a direct digital frequency synthesizer (DDFS), which consists of a phase accumulator, a phase-to-sine look-up table and a DAC. Using a non-linear DAC can significantly reduce the look-up table size, hence, reducing the power di...
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In the original publication of this article unfortunately the co-authors were omitted. The two co-authors are displayed now.
متن کاملSpur Reduction Techniques in Direct Digital Synthesizers
This paper reviews spur reduction techniques used in direct digital synthesizers (DDSs) or numerically controlled oscillators (NCOs). First, the classification and operation of conventional DDSs are reviewed. Covered are the pulse output DDS, sine output DDS, fractional divider, and phase interpolation DDS. It is shown that DDSs produce spurs as well as the desired output frequency due to the a...
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ژورنال
عنوان ژورنال: Journal of Electronics (China)
سال: 2009
ISSN: 0217-9822,1993-0615
DOI: 10.1007/s11767-009-1002-6