文章基本信息

标题：Referenced Approximation Technique for a Rom-Less Sweep Frequency Synthesizer
其他标题：Referenced Approximation Technique for a Rom-Less Sweep Frequency Synthesizer
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作者：Atman Jbari ; Larbi Bellarbi ; Abdelhamid Errachid 等
期刊名称：International Journal of Electrical and Computer Engineering
电子版ISSN：2088-8708
出版年度：2016
卷号：6
期号：3
页码：1213-1222
DOI：10.11591/ijece.v6i3.pp1213-1222
语种：English
出版社：Institute of Advanced Engineering and Science (IAES)
摘要：The main goal of this paper is to present a novel ROM-less direct digital frequency synthesizer for sweep instrumentation systems. It provides a main sweep channel for frequency analysis and a reference channel for phase and amplitude measurement block operating at constant frequency. For phase to amplitude converter, we propose a new trigonometric approximation technique based on a set of reference angles. In addition, we present the design of the proposed synthesizer and its evaluation in Matlab-Simulink environment. The simulation results illustrate the performances and demonstrate the effectiveness of our proposed circuit.
其他摘要：The main goal of this paper is to present a novel ROM-less direct digital frequency synthesizer for sweep instrumentation systems. It provides a main sweep channel for frequency analysis and a reference channel for phase and amplitude measurement block operating at constant frequency. For phase to amplitude converter, we propose a new trigonometric approximation technique based on a set of reference angles. In addition, we present the design of the proposed synthesizer and its evaluation in Matlab-Simulink environment. The simulation results illustrate the performances and demonstrate the effectiveness of our proposed circuit.
关键词：Electronics; Digital Frequency Synthesis;Direct digital synthesis; Sweep frequency; Spectral analysis; SFDR; Wave approximation.