Non-linear applications

Stranneby, Dag; Walker, William

doi:10.1016/b978-075066344-1/50004-5

Cited by 1 publication

(1 citation statement)

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“…A one-dimensional median filter with a window size of three was used for initial signal filtering. The median filter is a nonlinear filter that operates on the principle of selecting the middle value of an ascending sequence of values with the number of elements equal to the length of the window [32]. The premise behind the application of the filter is its ability to remove impulse interference from disturbed signals.…”

Section: Initial Filteringmentioning

confidence: 99%

Research on Developing an Outdoor Location System Based on the Ultra-Wideband Technology

Rykała

Typiak

2020

Sensors

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Ultra-wideband (UWB) technology is one of the most promising wireless communication technologies. Examples of UWB applications include, among others, radiocommunication devices and location systems, due to their operating range, ability to work in outdoor environments, and resistance to multipath effects. This article focuses on the use of UWB technology in constructing a guide localization system for an unmanned ground vehicle (UGV), which is one of the stages of implementing a “follow me” system. This article describes the complete process of UWB signal processing from its acquisition, methods of filtering, and obtained results, to determining the location of the guide. This article examines the possibility of using modified versions of localization algorithms for determining the guide’s location, including trilateration, methods of nonlinear programming, and a geometric algorithm proposed by us. The innovation of this study consists in the implementation of an algorithm that changes the selection of equations (mathematical model) for determining location based on the number of available measurements from UWB sensors.

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Section: Initial Filteringmentioning

confidence: 99%