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Localization by Signals of Opportunity in the Absence of Transmitter Position
IEEE Transactions on Signal Processing, 2022zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yang Zhang 0044, K. C. Ho 0001
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Positioning Based on Signals of Opportunity
IEEE Communications Letters, 2014A novel approach to opportunistic positioning based on timing measurements is presented. The asynchronous radio transmissions from fixed stations and from mobile GPS-equipped nodes are jointly exploited to cooperatively localize a blind node. To this end, a weighted least-squares (WLS) estimator is proposed; its effectiveness is illustrated via ...
COLUCCIA, ANGELO +2 more
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Mobile Communication Signal Selection Algorithm for Signal of Opportunity Navigation
2021 23rd International Conference on Advanced Communication Technology (ICACT), 2021At present, the satellite navigation and positioning system can provide a high precision positioning service to end users in outdoor environments. But in urban canyons, high-rise buildings, urban tunnels, tree canopy covered areas, and other environments with weak signal such as military base and other special places with signal disturbance or spoofery,
Huijie Zhu +5 more
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Modeling the Coherence of Scattered Signals of Opportunity
IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium, 2019The reflection of radar echoes collected under both monostatic and bistatic configurations generally undergoes losses of coherence. These can be affected by many factors, depending on both the system features and the illuminated surface, and it should be properly considered for an accurate characterization of the scattering phenomenon.
Comite D. +3 more
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Performance considerations for positioning with signals of opportunity
2016 International Conference on Localization and GNSS (ICL-GNSS), 2016This paper presents a study on the benefit of observing several signals of opportunity for positioning purposes. Several static emitters are placed over a defined area where an user is moving and acquiring measurements to each of these emitters. The simulation considers that the user is capable of acquiring time of arrival measurements from several ...
Pedro Figueiredo e Silva +1 more
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Signals or Mixed Signals: Why Opportunities for Mobilization are not Opportunities for Policy Reform
Mobilization: An International Quarterly, 2007Drawing on political opportunity theory, the theory of legislative logic, and political mediation theory, we hypothesize differential effects of the political environment on the actions of challengers (suffragists) and state actors (legislators) in the women's suffrage movement. We use sequential logistic regression to assess the effects of explanatory
Marie Cornwall +4 more
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