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Anti-jamming Effectiveness Evaluation Method of Radar Network Based on Geometric Distribution Curve of Detection Probability

A technology of geometric distribution and detection probability, applied to radio wave measurement systems, instruments, etc., can solve the problem that the anti-jamming performance of radar network is not intuitive and comprehensive

Inactive Publication Date: 2011-12-28
NAVAL AERONAUTICAL & ASTRONAUTICAL UNIV PLA
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Problems solved by technology

[0009] The purpose of the present invention is to propose a radar network anti-jamming effectiveness evaluation method based on the detection probability geometric distribution curve, to solve the problem that the existing detection probability index can only calculate the detection probability of a single point in space and measure the anti-jamming performance of the radar network. question

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  • Anti-jamming Effectiveness Evaluation Method of Radar Network Based on Geometric Distribution Curve of Detection Probability
  • Anti-jamming Effectiveness Evaluation Method of Radar Network Based on Geometric Distribution Curve of Detection Probability
  • Anti-jamming Effectiveness Evaluation Method of Radar Network Based on Geometric Distribution Curve of Detection Probability

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[0076] The radar network anti-interference effectiveness evaluation method based on the detection probability geometric distribution curve of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0077] The relative positions of the radar and the jammer are as attached figure 2 As shown, the initial position of radar 1 is (0, 0) meters, the initial position of radar 2 is (20000, 20000) meters, the initial position of radar 3 is (0, 30000) meters; the initial position of jammer 1 is ( 8660, 5000) meters, the initial position of jammer 2 is (0, 10000) meters. The three radars have the same working parameters: the peak power of the transmitter is 1000 watts, the horizontal dimension of the antenna is 3 meters, the vertical dimension of the antenna is 1 meter, the noise temperature of the radar system is 2000K, and the working frequency is 1×10 9 Hz, with a pulse width of 1×10 -6 seconds, the receiver processing gain is 20dB, t...

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Abstract

The invention discloses a radar network anti-jamming efficiency evaluation method based on a detection probability geometric distribution curve, which belongs to the field of radar data processing. Considering that the radar network is faced with various complex interferences during wartime, evaluating the anti-jamming capability of the radar network is an urgent task for the construction of the current radar network and the improvement of the combat capability and survivability of the radar network. The present invention is based on solving such problems. First, a series of equally spaced points are selected in the Cartesian coordinate system with each radar in the network as the center, and converted to the polar coordinate system, and then the signal-to-noise ratio of each point is calculated in the polar coordinate system to obtain the detection probability of each point , and finally use rank K rule or Neyman-Pearson criterion in the distributed detection center of the radar network to fuse the detections of each radar, calculate the total detection probability and connect the points with the same detection probability to obtain the geometric distribution curve of the detection probability of the radar network .

Description

technical field [0001] The invention belongs to the field of radar data processing and is suitable for evaluating the anti-jamming performance of a radar network under the condition of long-distance support jamming. Background technique [0002] Compared with a single radar, the radar network has a larger airspace coverage and stronger detection and tracking capabilities, reduces the blind area within the coverage of a single radar, and has a higher detection probability in the overlapping area of ​​​​the radar network. Considering that the enemy's interference may be all-round in wartime, and the radar network is faced with various complex interferences, it is imperative to evaluate the anti-jamming capability of the radar network and to improve the combat capability and survivability of the radar network. At present, the detection probability is often used in engineering to measure the anti-jamming performance of the radar network. This index is mainly achieved through the...

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Application Information

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IPC IPC(8): G01S7/36G01S7/40
Inventor 王国宏李世忠关成斌徐海全吴巍
Owner NAVAL AERONAUTICAL & ASTRONAUTICAL UNIV PLA
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