首页> 外文会议>International Conference on Communications Workshops >Distributed Software Defined Radio Testbed for Real-time Emitter Localization and Tracking
【24h】

Distributed Software Defined Radio Testbed for Real-time Emitter Localization and Tracking

机译:分布式软件定义了无线电测试,用于实时发射器本地化和跟踪

获取原文
获取外文期刊封面目录资料

摘要

We present a real-time TDOA localization testbed utilizing software defined radio and GPS based synchronization. A distributed software stack enables the localization of unknown signals by transporting the recorded baseband samples of several sensors over a backhaul network for centralized signal processing in a fusion center. To overcome the relatively large drifts of synchronization signals provided by standard GPS receivers, the system is permanently re-calibrated using a stationary reference beacon or alternatively a signal of opportunity. In a further step, we introduce a new generation of low-cost GPS disciplined oscillators to simultaneously achieve single digit meter accuracy and high update rates necessary for target tracking. The tracking is performed using a Kalman filter running on the output of the localization algorithm. Therefore, we also study the dilution of precision effect and adopt the filter accordingly. Further optimizations tackling the ambiguity problem in a three sensor system and optimum reference selection are introduced. Finally we present outdoor measurements to characterize the performance of the system.
机译:我们提出了一种利用软件定义的无线电和基于GPS同步的实时TDOA定位。分布式软件栈通过在融合中心中的回程网络上传输多个传感器的录制基带样本来实现未知信号的定位,以便在融合中心中集中信号处理。为了克服标准GPS接收器提供的同步信号的相对大的漂移,系统使用静止参考信标永久重新校准,或者是机会的信号。在进一步的步骤中,我们介绍了新一代低成本GPS纪律振荡器,以同时实现目标跟踪所需的单位数仪表精度和高更新率。使用在本地化算法的输出上运行的Kalman滤波器执行跟踪。因此,我们还研究了精密效果的稀释并相应地采用过滤器。引入了在三个传感器系统中解决模糊问题和最佳参考选择的进一步优化。最后,我们展示了室外测量来表征系统的性能。

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