Modeling method of airborne radar signal interception probability based on air intelligence track sharing

An airborne radar and probabilistic technology, applied in complex mathematical operations and other directions, can solve problems such as poor practicability and achieve good practicability.

Active Publication Date: 2019-02-05
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology

[0003] In order to overcome the shortcomings of poor practicability of the existing airborne fire control radar control methods, ...

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  • Modeling method of airborne radar signal interception probability based on air intelligence track sharing
  • Modeling method of airborne radar signal interception probability based on air intelligence track sharing
  • Modeling method of airborne radar signal interception probability based on air intelligence track sharing

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Embodiment Construction

[0027] refer to figure 1 . With the introduction of network information, the air combat situation has become increasingly transparent. Information such as the number, nature, flight track, and Radar Cross Section (RCS) of air targets has been shared with fighter platforms, and combat planning has been completed. At this time, the airborne fire control radar does not need to undertake more airspace searches and is dedicated to fire control tasks, resulting in the following changes in its working mode: ① large-scale, long-distance high-power search tasks are significantly compressed; ② due to high-precision network information The fire control radar can complete the handover and tracking of the target in the shortest time; ③ Since the distance, azimuth, RCS and other information of the target have been mastered, the fire control radar beam can be limited in the limited airspace, and its transmission power meets the known distance detection.

[0028] It can be seen that the rad...

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Abstract

The invention discloses an airborne radar signal interception probability modeling method based on air intelligence track sharing, which is used for solving the technical problem of poor practicability of the existing airborne fire control radar control method. The technical scheme is that the number n of times the intercepted receiver is irradiated in the range of radar beam scanning is calculated first. Secondly, the probability of the intercepted receiver and the radar beam meeting in time domain is calculated when the radar is illuminated. Then, the probability Pr (m, n, P) of m successfulinterceptions in time and space domain is calculated when the probability of the intercepted receivers being irradiated n times and the probability of the intercepted receivers meeting each other intime domain is P. Then the probability of the radar and the interceptor meeting successfully once in time and space is calculated. Then the detection probability Pd of the intercepted receiver to thebeam energy of the radar transmitter is calculated, the probability Pf of the intercepted receiver tuning to the radar frequency and the probability Pk of the intercepted radar signal being identifiedby the intercepted receiver are calculated, and the probability model of the intercepted radar signal is established. The invention adopts binomial distribution as a model of radar signal interception probability, and has good practicability.

Description

technical field [0001] The invention relates to an airborne fire control radar control method, in particular to an airborne radar signal interception probability modeling method based on air condition track sharing. Background technique [0002] refer to figure 1 . Under normal circumstances, the multi-target attack fire control radar workflow of a fighter aircraft is divided into stages such as take-off, guidance, air search, target tracking and attack planning, attack preparation, attack and exit attack. The "regular situation" defined here refers to the "one-on-one" combat mode without comprehensive air support. In order to achieve reliable detection of radar signals, the intercept receiver must "match" the intercepted radar signal in five aspects: time domain, air domain, frequency domain, energy and polarization mode. In this case, the radar is detected by one detection Interception is a small probability event. The document "LPI-Based Phased Array Radar Radiation C...

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Application Information

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IPC IPC(8): G06F17/18
CPCG06F17/18Y02A90/10
Inventor 景省利羊彦侯静夏佳能景占荣
Owner NORTHWESTERN POLYTECHNICAL UNIV
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