Spur reduction in truncation for DDS phase accumulators

Author

Shaoyuan, Zhang ; Fuqiang, Yao ; Zhang Shuoao ; Yanming, Huang ; Yanchang, Guo ; Yongxiang, Liu

Author_Institution

Inst. of Telecommun. Technique, China Electron. Equip. Syst. Eng. Inc., Nanjing, China

fYear

2001

fDate

2001

Firstpage

189

Lastpage

193

Abstract

Direct digital synthesizer (DDS) is a new technique for frequency synthesis, which has the advantage of fine frequency resolution and fast switching speed, but has a high level of spurious frequencies. This paper mainly describes several methods for reducing the parasitic sidelobe level in phased arrays and uses them for randomizing; the phase errors to improve DDS under the condition of phase truncation. It can reduce the level of spurious frequencies and is a good attempt for application to DDS

Keywords

antenna phased arrays; array signal processing; direct digital synthesis; DDS phase accumulators; array beamsteering; direct digital synthesizer; fast switching speed; fine frequency resolution; frequency synthesis; parasitic sidelobe level; phase errors; phase truncation; phased arrays; spurious frequency reduction; Electronic equipment; Frequency synthesizers; Phase noise; Phase shifters; Phased arrays; Quantization; Read only memory; Signal resolution; Signal synthesis; Systems engineering and theory;

fLanguage

English

Publisher

ieee

Conference_Titel

Radar, 2001 CIE International Conference on, Proceedings

Conference_Location

Beijing

Print_ISBN

0-7803-7000-7

Type

conf

DOI

10.1109/ICR.2001.984652

Filename

984652