@article{ref1,
title="Mobile phone passive positioning through the detection of uplink signals for search and rescue",
journal="Sensors (Basel)",
year="2019",
author="Gao, Yuhui and Deng, Zhongliang and Zhang, Yao and Sun, Shihua and Li, Zhen",
volume="19",
number="20",
pages="s19204526-s19204526",
abstract="To satisfy the service requirements of high accuracy and efficient life detection and location for search and rescue (SAR) missions after a disaster, we developed a passive positioning method to locate mobile phones by capturing the random access preamble, which can be applied to fourth-generation (4G) and even fifth-generation (5G) communication systems. We analyzed the characteristics of the random access procedure of a communication system and established a way to detect mobile phones by combining the time-difference-of-arrival (TDOA) estimation to determine the location. Then, we performed an experiment and a simulation of preamble sequence acquisition, and the results proved that the method is feasible and has high detection accuracy in high-noise conditions.<p /> <p>Language: en</p>",
language="en",
issn="1424-8220",
doi="10.3390/s19204526",
url="http://dx.doi.org/10.3390/s19204526"
}