Articles


      The systems of satellite navigation (GPS and Glonass) are usually used by the up-to-date location definition systems. But there are situations when the use of the systems of satellite navigation is impossible. Systems of satellite navigation do not operate in buildings, constructions, the underground, tunnels and everywhere where there is no direct visibility of zenith.      
      In such cases, in order to solve the problems concerning the definition of the object location, radio direction finding methods are applied. Discussing advantages and disadvantages of the present method can take much time. The main problem for the definition of the object location for the similar situations consists in re-reflection of the signal, which can lead to false directions. We offer a new method of network search and location definition...>>   

  Principle of construction of systems
of protection against radio-controlled explosive devices
    The modern level of technology development makes it possible to build systems of the diversified complexity. According to the statistic of use - standart radio channels of cellular communication systems,remote radio command systems, automobile radio security systems are more often used. The basic and most reliable principle of construction of systems for struggle against radio explosive devices is full noise masking of a radio channel for the purpose of prevention of reception of the fuzing signal by a radio-controlled explosive device.

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