• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control >A new algorithm for time-delay estimation in ultrasonic echo signals [Correspondence]
【24h】

A new algorithm for time-delay estimation in ultrasonic echo signals [Correspondence]

机译：超声回波信号时延估计的一种新算法[对应]

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Time-delay estimation determines the relative displacement between two ultrasound echo signals. In this paper, we propose a new time-delay estimation algorithm which uses only the sign function to obtain the corresponding timedelay estimate. The performance of the proposed algorithm was compared with two established algorithms, i.e., normalized cross-correlation (NCC) and sum of squared differences (SSD), using metrics such as statistical analysis and computational time. All simulated ultrasound echo signals were generated using ultrasound simulation software. The results indicated that overall, the proposed algorithm had similar accuracy and precision compared with the NCC and SSD algorithms; however, the computational time of the proposed algorithm was about 70% less than NCC and SSD, which showed a significant improvement.
机译：时延估计确定两个超声回波信号之间的相对位移。在本文中，我们提出了一种新的时延估计算法，该算法仅使用符号函数来获得相应的时延估计。使用统计分析和计算时间等指标，将拟议算法的性能与两个既定算法进行了比较，即归一化互相关（NCC）和平方差之和（SSD）。所有模拟的超声回波信号均使用超声模拟软件生成。结果表明，总体而言，与NCC和SSD算法相比，该算法具有相似的精度和精度。但是，所提算法的计算时间比NCC和SSD节省了约70％，这显示出明显的改进。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号