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83 417 (0,142s)

Výsledek výzkumu

Technical report on electronic protection methods for improvement of radar sensors immunity under electronic attack and other jamming

Report sum-up results of RASEN project research activities over whole project period. Report includes result of radar antenna sidelobe canceller research, azimuth of jammer determination, jammer tracking, radar detectors op...

JW - Navigace, spojení, detekce a protiopatření

  • 2013
  • O
Výsledek výzkumu

Annual technical research report 2003, Part II

Principal parameters and activity of the active radar jammers was described with respect to features influencing signal processing of the passive systems. Main attention is concentrated on jammer transmitted waveform and passive tec...

KA - Vojenství

  • 2003
  • Vx
Výsledek výzkumu

The Mobile VHF Jammer

The prototype of Mobile VHF jammer is automated, remote controlable jammer operating in the VHF frequency bandwidth, which is intended for EW troops. VHF jammer couteracts VHF radiocommunication systems on the tactical leve...

KA - Vojenství

  • 2005
  • X
Výsledek výzkumu

Reducing the jitters: How a chip-scale atomic clock can help mitigate broadband interference

experienced a number of disruptions in GPS signal tracking due to radio frequency interference (RFI). The main sources of RFI were coming from the illegal use of jammers onthe GPS signal is nearly equivalent to that of a wideband s...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2014
  • Jx
  • Odkaz
Výsledek výzkumu

Protection radio jammer in specific frequency band

Protection radio jammer ensures the protection of the user from potential triggering of RCIED (Remotely Controlle Improvised Explosives Device)......

JA - Elektronika a optoelektronika, elektrotechnika

  • 2008
  • Gfunk
Výsledek výzkumu

Inteligent WiFi jammer

Wifi jammer is a device capable of very effectively interfere with communication equipment in the 2.4GHz band, using IEEE 802.11b / g technology. Other forms of communication (e.g. Bluetooth) are not affected....

JA - Elektronika a optoelektronika, elektrotechnika

  • 2010
  • Gfunk
Výsledek výzkumu

Methodology of evaluation the effectivity of protection jammers

Methodology consist of: A - System of verification of substantial modules of protection jemmer B - Design of verifying measurements C - Examples of measurements and testing of jammers in individual bands......

KA - Vojenství

  • 2008
  • O
Výsledek výzkumu

Modular repeater jammer

Technical solution for hardware and software concepts of a repeater jammer whose activity is optimized to minimize the time between capturing new radio activity and generating a corresponding jamming signal....

Communication engineering and systems

  • 2017
  • Fuzit
Výsledek výzkumu

The Performance of the Follower Jammer with a Wideband-scanning Receiver

Modern wideband-scanning receivers achieve a scanning speed of tens of gigahertz per second. It allows constructing follower jammers that can jam contemporary frequency hopping systems. The existing articles about the infuence of follower

JA - Elektronika a optoelektronika, elektrotechnika

  • 2004
  • Jx
Výsledek výzkumu

Radio Jammer

Design og equipment intended for blocking the radio triggering of IED (Improvised Explosive Device)...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2007
  • Fuzit
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