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Volume 31 Issue 11
Dec.  2010
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Yang Ming-hui, Xu Jie, Sun Xiao-wei. Traffic Information Radar Design Based on Phase Noise Analysis[J]. Journal of Electronics & Information Technology, 2009, 31(11): 2591-2595. doi: 10.3724/SP.J.1146.2008.01598
Citation: Yang Ming-hui, Xu Jie, Sun Xiao-wei. Traffic Information Radar Design Based on Phase Noise Analysis[J]. Journal of Electronics & Information Technology, 2009, 31(11): 2591-2595. doi: 10.3724/SP.J.1146.2008.01598

Traffic Information Radar Design Based on Phase Noise Analysis

doi: 10.3724/SP.J.1146.2008.01598
  • Received Date: 2008-12-01
  • Rev Recd Date: 2009-04-28
  • Publish Date: 2009-11-19
  • In order to meet the needs of traffic information collection in Intelligent Transportation System (ITS), a design of K-band dual mode traffic information collection radar which can work in both Frequency Modulate Continual Wave (FMCW) mode and Continual Wave (CW) mode is introduced in this paper. As research about Voltage Controlled Oscillator (VCO) used as the oscillator in CW radar for velocity measurement is seldom reported, the effect of phase noise and detecting distance on velocity error in CW mode is analyzed. In addition, the short-range velocity measurement is also introduced. The experiment result shows that the velocity error of the dual mode traffic information radar with MMIC VCO is acceptable, although not as good as of the CW radar with low phase noise PLL. The analysis shows that the effect of phase noise on velocity error can be reduced by shortening the detecting distance. The dual mode radar is acceptable in velocity measurement of civilian traffic radar.
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