期刊文献+

UWS冲激雷达时域多普勒测速算法研究 被引量:1

Study on Velocity-measuring Method of Moving-target by Time-domain Doppler in UWS Impulse Radar
下载PDF
导出
摘要 超宽谱(UWS)冲激雷达是一种新体制的无载波雷达,不能通过载波多普勒频率对目标速度进行测量,因此需要采用新的测速方式。文章首先对UWS冲激雷达时域多普勒测速原理进行了研究,并对测速精度进行分析,指出其影响因素。提高回波信号信噪比和测速精度的关键在于对动目标回波信号进行有效的相干积累,因此本文提出了回波时间预估的目标回波信号积累方法。最后,通过仿真实验表明,该方法能够很好的对回波信号进行积累,有效提高信号信噪比和测速精度。 Ultra-wide Spectrum (UWS) impulse radar is a new type of radar. There isn' t carrier frequency in UWS impulse radar, so no Doppler frequency of carrier can be used to measure velocity of moving-target. Then, the method of time-domain Doppler velocity-measuring is pointed out, and its measurement accuracy is analyzed. To improve the SNR and measurement accuracy, coherent accumulating of echo signal is necessary, and difficult, too. In this paper, a new method, time-estimating of arrival, is put up to accu- mulate echo signals. Finally, it is shown through simulation that echo signals can be effectively accumulated by the method, then SNR and measurement accuracy is largely improved.
出处 《信号处理》 CSCD 北大核心 2009年第4期532-536,共5页 Journal of Signal Processing
基金 国家高技术863项目(2007AA803506)
关键词 UWS冲激雷达 时域多普勒 速度测量 回波时间预估 相干积累 UWS impulse radar Time-domain Doppler Velocity-measuring Time-estimating of arrival Coherent accumulating
  • 相关文献

参考文献7

  • 1I. J. Immoreev, S. V. Samkov. Ultra-Wideband Radar for Remote Detection and Measurement of Parameters of the Moving Objects on Small Range[J]. Ultra Wideband and Ultra Short Impulse Signals, Sep. 2004, Sevastopol, Ukraine.
  • 2Igor Y. Immoreev, Sergey V. Samkov, Teh-Ho Tao. Short- Distance Uhra-Wideband Radar' s Theory and Designing [ J ]. RADAR 2004 (International Conference on Radar Systems).
  • 3Donald D. Weiner, Tapan K. Sarkar, Hong Wang. Ultra Wide Band (UWB) Radar Detection Analysis and Demonstration Program[ J ], Phases I and II. RL-TR-95- 67.
  • 4Greg Barrie. UWB Impulse Radar Characterization and Processing Techniques [ M ]. Defence R&D Canada-Ottawa Technical Report, 2004.12.
  • 5James D. Taylor. Introduction to Ultra-Wideband Radar Systems[M]. CRC Press. Inc, 1995.
  • 6James D. Taylor. Ultra-Wideband Radar Technology [ M ]. CRC Press. Inc, 2001.
  • 7梁步阁,张光甫,袁乃昌.UWS脉冲雷达回波低信杂比识别检测算法研究[J].信号处理,2007,23(4):552-556. 被引量:6

二级参考文献3

共引文献5

同被引文献8

引证文献1

二级引证文献3

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部