Comparison of pulse and FMCW based radiolocation for indoor tracking systems
Comparison of pulse and FMCW based radiolocation for indoor tracking systems
复制标题
室内跟踪系统中基于脉冲和 FMCW 的无线电定位比较
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
F. Ellinger
中科院分区：
文献类型：
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作者：
A. Strobel;R. Eickhoff;A. Ziroff;F. Ellinger
在本文中，比较了基于脉冲和 FMCW 的无线电定位技术在室内人员跟踪系统中的可用性。推导了基于脉冲和 FMCW 的距离测量的基本原理和参数。为了计算信号预算，需要考虑信道模型、噪声限制和发射功率方面的监管方面。两种方法的精度和覆盖范围是针对 ISM 和 UWB 频段进行估计的。 FMCW 在覆盖范围、范围精度和系统要求方面所显示的优势有利于这种目标应用方法，其中必须预期由于波传播穿过墙壁和各种障碍物而导致的高路径损耗。
In this paper, pulse and FMCW based radiolocation techniques are compared with respect to their usability for an indoor person tracking system. The basic principles and parameters for pulse and FMCW based distance measurements are derived. To allow the calculation of the signal budget, channel models, noise limits and regulatory aspects in terms of transmit power are considered. The accuracy and the coverage range for the two approaches are estimated for ISM and UWB frequency bands. The shown advantages of FMCW with respect to coverage range, range accuracy and system requirements favour this approach for the target application, where a high path loss due to wave propagation through walls and various obstacles must be expected.