In the presented work, on basis of introduced integral indicator quality information support for decision makers in Air Traffic Control system, security Identification Friend or Foe systems was assessed under action intentional simulated interrogation signals flows channel. It is shown that jamming correlated interference required intensity channel allows paralyzing aircraft responder systems, which reduces likelihood correct identification air objects and, as a result, eliminates accuracy system.

This paper suggests a new model and method for detecting request signals in an Identification Friend or Foe (IFF) aircraft responder. It is proposed to separately accumulate the detected components of signal coming from spaced antennas responder then decrypt these accumulated components. The comparative analysis detection shows that can improve quality as compared achievable with currently used based on decryption received

This paper proposes a method of enhancing noise immunity in Identification Friend or Foe (IFF) systems. It consists successive transition from servicing individual request signals to interrogators by allocating synchronous sequences an aircraft responder, thus making it possible, firstly, exclude uncorrelated signal and, secondly, significantly reduce the intensity correlated sequences. The comparative quality analysis air object identification shows that IFF systems based on proposed have...

The work shows the method of interference immunity estimation airborne secondary security radar responders as open one-channel queuing systems with failures. It considers presence unintentional (intrasystem) and deliberate (correlated uncorrected) in request channel when servicing signals imitating-stable mode imitating-unstable mode. is shown that absence spatial temporal differences between correlated leads to a significant decrease aircraft and, result, quality indicators querying...

This paper presents a comparative quality analysis of the air objects detection Secondary Surveillance Radar (SSR). Two structures for processing coordinate codes response signals, taking into account effect aircraft responder availability factor, are compared. The impacts fluctuation and impulse noise in channel also taken account. It is shown that received signals code with preliminary inter-period more preferable, being compared current subsequent code. improved by reducing influence channel.

The paper presents a synthesis of the optimal request signals detector in aircraft responders Cooperative Surveillance Systems when channel streams emitted both main and side lobes requester antenna, deliberate correlated interferences imitating chaotic impulse shown that detection an responder is significantly dependent on intra-system interference flux density, which reduces safety these systems due to possibility control operation respondent interested party by inclusion intentional interference.

This article proposes a method of improving information security Identification Friend or Foe (IFF) systems. In this method, successive transition is made from servicing separate IFF requester with system to network interrogators systems that monitor air object (AO) due to: forming on the aircraft responder analysis time interval, allocating request signals at interval and, when least one signal end emitting response which includes spatial coordinates AO. it possible exclude possibility...

In the present work, based on a comparative analysis of quality signal processing request Secondary Surveillance Radar (SSR), it is shown that model and method signals SSR are two-channel construction principle in which normalized from output threshold device used for selection by time main channel concurrency, allows to improve such comparison with single-channel concurrency reducing influence false side lobes uncertainty function.

Cooperative surveillance systems (CSS), which are formed by secondary radar (SSR), Multilateration (MLAT) and Automatic dependent (ADS) the basis of information support airspace control system air traffic (ATC). CSS represent asynchronous data transmission systems, capacity largely determines quality consumers ATC. The principle construction, based on servicing request signals, predetermined a significant density intra-system interference possibility interested party to use aircraft...

In the paper, based on consideration of problem detecting signals in cooperative observation systems as a test two hypotheses, optimal rule for case an arbitrary cost function is obtained and it shown that best value Bayesian should be compared with threshold generalized likelihood ratio, does not depend algorithm quality interrogator, but completely determined by decision costs system whole. The method response processing preliminary inter-period proposed work allowed to improving air...

The paper compares the noise immunity of existing data channel in cooperative surveillance systems, which is based on use a positional code, with proposed transfer method, applies time interval coding transmitted and implemented basis non-synchronous asynchronous networks observation systems. It shown that method makes it possible to reduce response signal flow intensity systems enabling decrease level intra-system interference and, as consequence, an improvement improve This excludes...

The analysis of existing data processing structures in information networks airspace surveillance systems where certain stages are implemented sequentially has shown that an inter-stage optimization air object detection and coordinate measurements impossible. However, the synthesis optimal structure for joint signal primary from a system network have proven feasibility processing.

In the paper, on ground of comparative analysis data consolidation methods in stages tertiary processing, primary processing and signal a unified information network airspace surveillance systems for air objects, it was shown that most effective is joining decisions about objects at stage which provides greatest probability provision consumers control system.

This document proposed and explored a fusion data model of primary radar systems Identification Friend or Foe (IFF) an airspace control system, in which coordinates calculated by for air objects there are no response signals IFF entered into the object form, if from systems, that included form estimated based on weight according to both allows improving quality information support decisions makers use monitoring system.

In this article, based on the Bayesian approach, Primary Surveillance Radar (PSR) and Identification Friend or Foe (IFF) systems data fusion model is proposed investigated for case, where uncertainty volume of PSR IFF are same, as well significantly exceeds several air object in volume. It shown that second identification process has three phases: detection measurement (AO) coordinates, AO selection binding to target designation, which includes fusing coordinates determined by systems,...

Abstract: Artificial intelligence (AI) technologies have already played a revolutionary role in scientific research, from diagnostics to text-generative AI used writing. The use of the field needs transparent regulation, especially with longstanding history use—the first science were developed 1950s. Since then, has gone being able alter texts producing them using billions parameters generate accurate and natural texts. However, work requires high ethical professional standards, rise led...

The presented document describes a method for enhancing information security of requestings Cooperative Surveillance Systems (CSS). In it, by optimizing the request signal flows individual CSS members network, probability interaction signals in an aircraft responder air object is reduced. This leads to decrease likelihood excluding service considered object, and as result, it increases reducing violating integrity data included considering network.

Based on consideration of the procedures, which are performed at stages aerospace surveillance systems data processing, paper shows that optimization detection and measurement coordinates aerial targets is possible solely distributed processing in system network, value analog threshold for signal used as a parameter under conditions joint processing.

In the work, optimal structure for processing signal data, data of primary and secondary radar systems is synthesized. Thanks to creation an information base storing on required number surveys, in each element which with quality indicators their acquisition are stored, inter stage optimization possible.

Secondary surveillance radar (SSR) performs one of the main functions information service for consumers airspace control system.To improve quality SSR is processed using modern technology.The use a consistent procedure processing system data, due to functionally completed stages processing, made it possible formalize data procedure.However, this significantly limited, and in some cases excluded, opportunities inter-stage optimization processing.The structure synthesis analysis are considered...

The paper considers ways to improve the quality of information support for airspace control systems and air traffic with help wide-area multi-position monitoring systems. A comparative analysis has shown that accuracy estimating object coordinates by wide area multilateration system under consideration is significantly higher than provided currently available It introduction active passive methods creating observation broadens number coordinate estimation techniques and, as a result,...

Secondary Surveillance Radars are widely used in many aspects of users' information support, such as air object recognition and radio beacon tracking. The study considers a two-channel data transmission system an SSR model assesses its relative capacity subject to intentional (correlated uncorrelated) intra-system interference well fluctuation (masking effect) noise the request response channels. It is shown that aircraft transponder design built on principles single-channel queuing with...

The paper shows that successive transition to 4D measurements of the air objects location by each surveillance system included in information network allows create a partially synchronous observation systems. This coordinate processes both receiving and processing data scattered systems, which predetermines resolution technical contradictions cannot be resolved existing asynchronous networks particular, merge from systems during filtration phase an object consequence, exclude tertiary