In the article, based on the analysis of the use of modern individual on-board electronics and electronic search and guidance systems, it is concluded that one of the promising directions for their further development is the search for methods of not only protection from the means of radio-electronic suppression, but also an active counteraction to these means, the so-called counter-radio electronic counteraction One of the most effective obstacles that can be created by radar detection systems by stations is the active barrier of individual enemy protection - this is a polarizing obstacle, so the issue of reducing the effectiveness of the polarizing effect on the system of automatic support for the direction of the on-board radar weapon control system is quite relevant today. In order to counteract the station's active interference in the conditions of its creation of a polarization obstacle, it is proposed to change the plane of polarization on the receiving side. As a result, a useful signal will be taken in polarization, which does not coincide with the polarization plane of the radiation signal. Failure to match polarization when receiving a reflected signal will not significantly affect the power of a useful signal. In order to implement the proposed method in the article, a mathematical model for evaluating the effectiveness of the counter-radio-electronic counteraction of the on-board station was proposed to obstruct the enemy's individual protection in the conditions of its creation of a polarization obstacle on a fixed plane of polarization, as well as features of the practical realization of such counteraction during air combat and restrictions on its creation. The mathematical model of the evaluation of the effectiveness of the counter-electronic counteraction to the aircraft station's active barriers in the conditions of its creation of a polarization obstacle on a fixed plane of polarization is developed, it will allow to formulate practical recommendations regarding the application of the developed method at different stages of air combat. KELP management in different ways, on the one hand, slightly reduces the effectiveness of the on-board management of weapons at different stages of flight, but on the other hand, the effectiveness of the airborne equipment of the airborne ejection of the enemy significantly decreases, which will increase the effectiveness of the use of weapons and the likelihood of damage to the enemy aircraft using the means of destruction, which today have a significant cost.
In the article the analysis of methods and means of ensuring the noise immunity transmission in telecommunication networks that use technologies in real time to ensure quality, valid and reliable data transmission under conditions of interference. For telecommunication networks the problem of optimal quality reception of information is to use the properties of the useful signal, interference, and transmission channel to increase the probability of correct reception. To increase the probability of correct reception needs to be pre-processed received signal that increases the signal interference. Transmission channels that use technologies that allow real-time to ensure quality, valid and reliable data transmission under conditions of interference provide better instruction indicators reliable transmission of information is carried out through the use of the necessary coding. During transmission on such channels, there are many difficulties associated with the impact of natural, industrial, intentional and unintentional interference. All methods of a noise stability in General lead to temporal and hardware redundancy as part of the source of information and of the addressee. Examine noise immunity of TCN as ability of the system to counteract to the hindrances, then it is necessary to know, what to counteract and on what to counteract, for a fight against hindrances a priori information is needed about properties of transmitter of information and about hindrances. Knowing all these properties of the signal and noise, it is possible to establish certain differences between them and use them to develop ways, means and methods to provide noise immunity. The aim of this article is realization of analysis of methods and backer-ups of interference immunity information transfer in TCNS, which will allow real-time to guarantee the quality, reliable and reliable transmission of the hindrances given in the conditions of influence. Unlike distortions hindrances carry casual character. They in are good time unknown and that is why cannot be fully removed. Knowledge of methods and facilities of construction of modern channels of transmission TCN in the conditions of action of hindrances, will allow building the reliable channels of information transfer for such networks.
The combat capabilities of modern means of warfare in the air, largely depend on the reliable functioning of electronic weapons and electronic weapon control systems. Therefore, during air operations, each of the belligerents will strive to disorganize the operation of radio-electronic means and radio-electronic systems for controlling forces and weapons in order to ensure the stable operation of their means. Modern stations of active interference of individual protection reduce aircraft damage by missiles with active and semi-active homing during air combat by 40-60%. The active development of airborne electronic countermeasures forces us to look for ways and means not only to protect against them, but also to actively counter these means, the so-called counter-radioelectronic countermeasures. Today, there are some methods of counter-radioelectronic counteraction to the airborne stations of active interference of the individual defense of the enemy, but the sequence and conditions of their application are not defined. Therefore, the article proposes to determine the features of the application of three methods of counter-radioelectronic counteraction and to develop an algorithm for counter-radioelectronic counteraction to on-board stations of active enemy interference in the conditions of the creation of various types of polarization interference by it. The development of the algorithm makes it possible to evaluate the effectiveness of the application of counter-radioelectronic countermeasures based on performance indicators of the operation of an on-board radar weapon control station.
The article describes an improved method for mathematical modeling of the functioning of the onboard radar in conditions of active opposition to the jammers of the enemy. The analysis of modern airborne radar systems and stations of active hindrances as objects of mathematical modeling, and existing methods of active resistance to the on-Board jammers of the enemy and methods of mathematical modeling of the functioning of the onboard radar. Generated input data for the modeling of the performance of airborne radars in noisy environments and active opposition to the jammers of the enemy, given a selected situation of air combat, which is subject to mathematical description. Were the selected indicators and criteria, characterizing efficiency of functioning of the onboard radar, the main of which is the restriction on the range of their use, depending on the applied method of resistance. Preliminary calculations regarding the application of these methods is active opposition. Given the peculiarities of application of active methods of combating enemy jamming stations, it is proposed to divide the cycle of air combat between aircraft on 5 stages, depending on the distance between them. The algorithm justify the selection of methods of countering enemy jamming stations taking into account the distance between the aircraft for continuous tracking and determined the probability of target tracking with the use of different combinations of ways of counteraction. For proper and complete evaluation of the performance of airborne radars is proposed to use fuzzy sets and the theory of games, by means of what a mathematical model of evaluating the performance of airborne radars in the conditions of active opposition to the jammers of the enemy, which was used during development of the algorithm and selecting the most efficient combination of ways to counter.
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