Zobrazeno 1 - 10
of 74
pro vyhledávání: '"J. Łopatka"'
Autor:
Karol Cieślik, Marian J. Łopatka
Publikováno v:
Applied Sciences, Vol 12, Iss 8, p 3863 (2022)
Due to threats to human safety, remotely controlled manipulators are more and more often used to carry out rescue tasks in hazardous zones. To ensure high efficiency and productivity of their work, intuitive control systems are necessary, e.g., maste
Externí odkaz:
https://doaj.org/article/8cc473480fb54025a7f6c7f8f7d2413f
Autor:
Marian J. Łopatka, Arkadiusz Rubiec
Publikováno v:
Applied Sciences, Vol 10, Iss 17, p 5747 (2020)
Heavy-wheeled vehicles with articulated hydraulic steering systems are widely used in construction, road building, forestry, and agriculture, as transport units and tool-carriers because they have many unique advantages that are not available in car
Externí odkaz:
https://doaj.org/article/0e929319bae84957815cdd43a10f504b
Autor:
Marcin Puchlik, J. Łopatka
Publikováno v:
XII Conference on Reconnaissance and Electronic Warfare Systems.
Synchronization in wireless networks based on OFDM modulation has a huge influence for proper receiver operation. Comparing available techniques used for synchronization purposes, authors propose modification of well-known Schmidl and Cox algorithm t
Publikováno v:
PRZEGL�D ELEKTROTECHNICZNY. 1:75-78
This article concerns the issues related to efficiency of intentional jamming, of wireless networks, and their immunity against them. The work presents, the issue of communication jamming and laboratory test bed for response jamming effectiveness eva
Autor:
Michal Kryk, J. Łopatka
Publikováno v:
SPIE Proceedings.
To provide reliable communications, mobile wireless networks should contain link quality monitoring, adaptive routing and interference avoidance mechanisms. Their efficiency is one of the most critical parameters of the network, so these elements sho
Publikováno v:
SPIE Proceedings.
Spectrum sensing is a functionality that enables network creation in the cognitive radio technology. Spectrum sensing is use for building the situation awareness knowledge for better use of radio resources and to adjust network parameters in case of
Publikováno v:
SPIE Proceedings.
The rapid development of systems which use wireless technologies causes the escalation of the spectrum shortage problem. That is why the concept of coordinated dynamic spectrum management has appeared. It improves efficiency of the spectrum use and m
Publikováno v:
SPIE Proceedings.
Wireless sensor networks are a tool increasingly used to monitor various environmental parameters. They can also be used for monitoring the electromagnetic spectrum. Wireless sensors, due to their small size, typically have simplified radio receivers
Publikováno v:
SPIE Proceedings.
Rapid evolution of wireless systems caused an enormous growth of data streams transmitted through the networks and, as a consequence, an accompanying demand concerning spectrum resources (SR). An avoidance of advisable disturbances is one of the main
Publikováno v:
Measurement. 32:93-107
Co-operation of different communications networks requires implementing specialized interfaces that make possible exchanging user’s information as well as control information. For that reason estimating information processing quality of a given int