Use of a new pedometric dead reckoning module in GPS denied environments

Use of a new pedometric dead reckoning module in GPS denied environments
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在 GPS 被拒绝的环境中使用新的计步航位推算模块

DOI:
10.1109/plans.2008.4570048
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发表时间:
2008
期刊:
2008 IEEE/ION Position, Location and Navigation Symposium
影响因子:
--
通讯作者:
T. Vu
T. Vu
中科院分区:
--
文献类型:
--
作者:
T. Judd;T. Vu

文献摘要

被引文献

相似文献

霍尼韦尔开发了一种新的航位推算模块,即DRMreg4000。计步航位推算(DR)导航误差对罗盘精度较为敏感。该模块中的新型罗盘校准算法使得在实际现场安装中能够达到工厂级精度。我们讨论了一系列测试,并特别关注室内环境。室内磁场异常会影响航位推算精度。然而,这些异常在特定位置会产生独特的指纹。当用户再次访问同一位置时,可以使用一种正在申请专利的相关技术来检测这种指纹。这限制了位置误差的增长。在磁场良好的环境中操作时,同样的技术可用于减少系统误差。我们给出了该技术逐步应用的示例。
Honeywell has developed a new Dead Reckoning Module, the DRMreg4000. Pedometric Dead Reckoning (DR) navigation errors are sensitive to compass accuracy. New compass calibration algorithms in the module enable a factory level of accuracy to be achieved in practical field installations. We discuss a range of testing with special attention to indoor environments. Indoor magnetic anomalies can compromise the DR accuracy. However, the anomalies generate a unique fingerprint at a given location. A patent pending correlation technique can be used to detect this fingerprint when a user revisits the same location. This puts bounds on the growth of position errors. The same technique can be used to reduce systematic errors when operated in magnetically benign environments. We give step-by-step application examples of the technique.