Calculation of Probability of Radio Signals Detection Depending on the Technical Characteristics of Radio Monitoring Means
DOI:
https://doi.org/10.20535/RADAP.2021.86.52-57Keywords:
search, source of radio emission, probability of detection, frequency band, duration, time, means of radio monitoringAbstract
In modern world the allocation of radio frequency resources is tightly controlled by government agencies for the high-quality performance of various radio communication, radar and radio navigation systems, which operate in the interests of various services. Thanks to modern radio means it is possible to provide communication, regardless of the geographical location of correspondents.
While setting up new radio communication systems, searching for new sources of radio emission and monitoring of existing radio emitting means, the question is often arisen while calculating the probability of detecting a certain radio signal by the existing equipment with some certain technical characteristics.
The purpose of the proposed article is to calculate the probability of radio signals detection depending on the technical characteristics of the radio monitoring means during the search, subject to the radio signal frequency is within the search range and the energy parameters of the signal are sufficient enough to detect it.
The existing approaches are analyzed while determining the probability of radio signals detection in radio networks (point-to-point radio nets) at a certain frequency and time characteristics of radio receiving devices. In addition, a scientific and methodological apparatus is proposed, which should be used when planning the search objectives for new sources of radio emission. As a result of research, probability dependence of radio signals detection based on the frequency-time characteristics of the radio receiving device was established.
In addition, the graphs of probability dependence of radio signals detection based on time characteristics of the radio receiving device were presented, which are created in accordance with the proposed scientific and methodological apparatus and using ''Mathcad 14.0'' software, as well as determined ways to increase the probability of radio signal detection. In particular, to increase the probability of radio signals detection it is necessary to reduce the frequency search range and time characteristics of the technical processes of the radio receiving device. In addition, it is advisable to consider the possibility of increasing the search time of a signal and the bandwidth of a radio receiving device.
The scientific and methodical apparatus described in the article can be used during research of priori results of the search for new sources of radio emission by a certain equipment composition with certain technical characteristics.
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