• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Technical Meeting of The Institute of Navigation >Power Characterization for GPS L1 and L5 Transmissions
【24h】

Power Characterization for GPS L1 and L5 Transmissions

机译：GPS L1和L5变速器的功率表征

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This article aims to characterize the GPS L5 signal power, and how it differs from the GPS L1 C/A signal power. This was done in order to determine if the GPS L5 signal would be advantageous to use indoors. The specifications of the GPS L5 signals show a 3.6 dB increase from the specifications for legacy L1 C/A signals. To verify the increased transmitted power an estimate of the satellite transmit antenna pattern was found for two of the Block IIF satellites with high enough passes over Boulder, Colorado, by subtracting the receiver antenna pattern. The L5 signal showed an average transmitted higher power of 2.7-3.1 dB which is slightly less than expected, but still close. A second experiment was set up to measure the impact of the reception antenna pattern. Four different antennas were used to collect data and compare the measured signal power to expected signal power for GPS L5. Two of the antennas show lower than expected signal powers for L5, especially for high elevation angles. As mentioned above this research effort took place in order to determine whether the GPS L5 signal would be preferable to use indoors. An assisted technique was used to detect the L1 and L5 signals inside the engineering building of University of Colorado. The results showed a mean of 3.5 dB higher power for GPS L5 compared to GPS L1 which shows that GPS L5 would be a good choice for indoor GPS applications.
机译：本文旨在表征GPS L5信号功率，以及它如何与GPS L1 C / A信号功率不同。这样做是为了确定GPS L5信号是否有利地在室内使用。 GPS L5信号的规格显示3.6dB从传统L1 C / A信号的规格增加。为了验证增加的透射功率，通过减去接收器天线图案，对具有高于足够高的块IIF卫星的块IIF卫星的估计是发现卫星发射天线图案的估计。 L5信号显示平均传输更高功率为2.7-3.1dB，略小于预期，但仍然关闭。建立了第二个实验以测量接收天线图案的影响。使用四种不同的天线来收集数据并将测量的信号功率与GPS L5的预期信号功率进行比较。两个天线显示出低于L5的预期信号功率，特别是对于高仰角。如上所述，这项研究努力进行了以确定GPS L5信号是否优选在室内使用。辅助技术用于检测科罗拉多大学工程建设内的L1和L5信号。结果表明，GPS L5的GPS L5的平均值为3.5 dB，表明GPS L5将是室内GPS应用的好选择。

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