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http://dx.doi.org/10.6109/jkiice.2017.21.12.2270

Improving the frequency domain resolution of Wireless signal for observing the Doppler frequency  

Hong, Yerin (Department of Electronics and Communication Engineering, Kwangwoon University)
Oh, Hyukjun (Department of Electronics and Communication Engineering, Kwangwoon University)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.21, no.12, 2017 , pp. 2270-2278 More about this Journal
Abstract
There are many research to find not only user data but also physical information about objects or human in radio signals. And we can obtain physical information from the wireless signals such as RSSI (Received Signal Strength Indicator), Doppler frequency and other values. For example, the Doppler frequency is generated by the object moving physically in wireless signals used for communication. By analyzing the Doppler frequency, the moving speed and direction of the object can be predicted. In this paper, we study the previous research which is to detect the moving objects or human using wireless signals, 802.11a signals. We introduce and verify the method to improve the frequency domain resolution of commercial 802.11a receivers to observe the doppler frequency and obtain the information of the moving objects or human.
Keywords
802.11a Transceiver; USRP; GNU Radio; Doppler frequency; FFT; resolution improvement;
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Times Cited By KSCI : 1  (Citation Analysis)
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