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Radar networking resource control method based on RF stealth in passive coordination

A radar networking and resource control technology, applied in the reflection/re-radiation of radio waves, utilization of re-radiation, radio wave measurement systems, etc. times, the effect of optimizing dwell time and radiated power, minimizing the probability of interception

Active Publication Date: 2017-08-18
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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AI Technical Summary

Problems solved by technology

However, the Achilles' heel of passive sensors is that the tracking of the target is completely dependent on the electromagnetic radiation of the target. When the target keeps radio silent, the passive sensor will not work normally; in addition, the passive sensor has the same tracking accuracy as the active radar Larger error than

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  • Radar networking resource control method based on RF stealth in passive coordination
  • Radar networking resource control method based on RF stealth in passive coordination
  • Radar networking resource control method based on RF stealth in passive coordination

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Embodiment Construction

[0045] Attached below figure 1 and figure 2And specific embodiments, to further illustrate the present invention, it should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. After reading the present invention, those skilled in the art will understand the various equivalent forms of the present invention All modifications fall within the scope defined by the appended claims of this application.

[0046] Consider having a radar transmitter and N r The radar networking system of the external receiver, the system model is as follows figure 1 shown.

[0047] Such as figure 2 As shown, the specific implementation is as follows:

[0048] Step 1: According to the requirements of the target tracking task, set the expected covariance matrix P that characterizes the target tracking accuracy threshold d and target detection SNR threshold SNR min . Among them, the expected cova...

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Abstract

The invention discloses a radar networking resource control method based on RF stealth in passive coordination. The method comprises the steps of after an anticipated covariance matrix Pd which represents a target tracking precision threshold and a target detection signal-to-noise ratio threshold SNRmin are set, establishing a radar networking resource control mathematical model; according to difference between a calculated Pd and the predicated target covariance matrix, determining whether the predicated target tracking precision satisfies a requirement; if yes, shutting down a radar transmitter in the networking system at next time, and tracking the target through TDOA passive sensor coordination; and otherwise, starting the radar transmitter in the networking system at next time, and tracking the target; after target state information is acquired and predicted, confirming residence time and radiation power of the radar transmitter at the next time; and performing cycling until the tracking process is finished. Based on the radar networking resource control method, starting / stopping state, residence time and radiation power of the radar transmitter can be optimized through the passive sensor, thereby improving RF stealth performance of the radar networking system.

Description

technical field [0001] The invention belongs to the technical field of radar signal processing, and specifically proposes a radar networking resource control method based on radio frequency stealth under passive cooperation. Background technique [0002] Radar radio frequency stealth technology refers to the stealth technology that radar intercepts, sorts, identifies, and tracks against enemy passive detection systems. Battlefield survivability and operational effectiveness of the equipped platform. When the radar and radar networking system track the target, without affecting the target tracking performance, reducing the number of times of radar transmitter transmission, radiation power and dwell time can effectively improve the radio frequency of the radar and radar networking system. Stealth performance. [0003] The existing resource allocation methods of the radar networking system based on radio frequency stealth can be roughly divided into two types. One is the allo...

Claims

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Application Information

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IPC IPC(8): G01S7/282G01S13/66
CPCG01S7/282G01S13/66
Inventor 时晨光汪飞李海林周建江
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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