Abstract
Several applications of ultra-wideband (UWB) sensors have been introduced recently. Here, through-wall detection, localization and tracking of human beings at emergency situations belong to the most frequently considered. For that purpose, UWB radars or UWB sensors network operating in the frequency band DC-5 GHz can be applied with advantage. On the other hand, in order to operate with a high efficiency, rescue or law enforcement teams are used to employ at the emergency situations solution usually narrowband wireless personal communication systems operating in the same frequency band as the UWB sensors. In addition, a standard TV and radio broadcasting, and WiFi and mobile communications (e.g. GSM, LTE, etc.) can be active as well. And finally, the particular nodes of the UBW sensor network could communicate by using a narrowband transmission systems with carriers located in the frequency band exploited by the UWB sensors. Hence, the UWB sensor performance under the condition of narrowband interference has to be considered. In our paper, we will provide some preliminary experimental analysis of the M-sequence UWB radar performance under the narrowband interference due to FSK modulated signal.
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