• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Conference on unattended ground, sea and air sensor technologies and applications XI; 20090413-16; Orlando, FL(US) >Seismic Bearing
【24h】

Seismic Bearing

机译：抗震轴承

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

Textron Systems (Textron) has been using geophones for target detection for many years. This sensing capability was utilized for detection and classification purposes only. Recently Textron has been evaluating multiaxis geophones to calculate bearings and track targets more specifically personnel. This capability will not only aid the system in locating personnel in bearing space or cartesian space but also enhance detection and reduce false alarms. Textron has been involved in the testing and evaluation of several sensors at multiple sites. One of the challenges of calculating seismic bearing is an adequate signal to noise ratio. The sensor signal to noise ratio is a function of sensor coupling to the ground, seismic propagation and range to target. The goals of testing at multiple sites are to gain a good understanding of the maximum and minimum ranges for bearing and detection and to exploit that information to tailor sensor system emplacement to achieve desired performance. Test sites include 10A Site Devens, MA, McKenna Airfield Ft. Benning, GA and Yuma Proving Ground Yuma, AZ. Geophone sensors evaluated include a 28 Hz triax spike, a 15 Hz triax spike and a hybrid triax spike consisting of a 10 Hz vertical geophone and two 28 Hz horizontal geophones. The algorithm uses raw seismic data to calculate the bearings. All evaluated sensors have triaxial geophone configuration mounted to a spike housing/fixture. The suite of sensors also compares various types of geophones to evaluate benefits in lower bandwidth. The data products of these tests include raw geophone signals, seismic features, seismic bearings, seismic detection and GPS position truth data. The analyses produce Probability of Detection vs range, bearing accuracy vs range, and seismic feature level vs range. These analysis products are compared across test sites and sensor types.
机译：德事隆系统公司（Textron）多年来一直使用地震检波器进行目标检测。该感测能力仅用于检测和分类目的。最近，德事隆一直在评估多轴地震检波器，以更具体地计算人员的方位并跟踪目标。此功能不仅可以帮助系统将人员定位在轴承空间或笛卡尔空间中，还可以增强检测效率并减少错误警报。德事隆参与了多个地点的多个传感器的测试和评估。计算地震方位的挑战之一是适当的信噪比。传感器信噪比是传感器耦合到地面，地震传播和目标范围的函数。在多个站点进行测试的目的是充分了解方位和检测的最大和最小范围，并利用该信息来调整传感器系统的位置，以实现所需的性能。测试地点包括马萨诸塞州麦肯纳机场英尺的10A Site Devens，MA。乔治亚州本宁市和亚利桑那州尤马试验场。评估的地震检波器传感器包括一个28 Hz的三轴峰值检波器，一个15 Hz的三轴峰值检波器和一个混合的三轴检波器峰值，其中包括一个10 Hz的垂直地震检波器和两个28 Hz的水平检波器。该算法使用原始地震数据来计算方位角。所有评估过的传感器都具有安装在尖钉外壳/夹具上的三轴地震检波器配置。传感器套件还比较了各种类型的地震检波器，以评估较低带宽带来的好处。这些测试的数据产品包括原始地震检波器信号，地震特征，地震方位，地震检测和GPS位置真实数据。这些分析产生检测概率与范围，轴承精度与范围以及地震特征水平与范围的关系。这些分析产品将在测试地点和传感器类型之间进行比较。

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