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A Method of Converting Missile-target Intersection Echoes Using Near-field Scattering Function Retrieved from Local Scattering Sources

A scattering function and scattering source technology, which is applied in the field of near-field electromagnetic scattering characteristic data conversion to generate projectile and eye rendezvous echoes, and the near-field scattering function converts projectile and eye rendezvous echoes, which can solve the problem of not involving or involving microwave band radar target echoes. Wave and other problems, to achieve the effect of improving the application rate, improving the simulation calculation speed, and fast calculation

Active Publication Date: 2021-06-04
SHANGHAI RADIO EQUIP RES INST
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Problems solved by technology

However, this method does not involve the calculation of radar target echoes in the microwave range, nor does it involve the conversion of near-field scattering functions to projectile intersection echoes

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  • A Method of Converting Missile-target Intersection Echoes Using Near-field Scattering Function Retrieved from Local Scattering Sources
  • A Method of Converting Missile-target Intersection Echoes Using Near-field Scattering Function Retrieved from Local Scattering Sources
  • A Method of Converting Missile-target Intersection Echoes Using Near-field Scattering Function Retrieved from Local Scattering Sources

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Embodiment Construction

[0042] The following combination Figure 1 to Figure 6 , the technical content, structural features, achieved goals and effects of the present invention will be described in detail through preferred embodiments.

[0043] Such as figure 1 As shown, the method for converting the near-field scattering function inverted by the local scattering source provided by the present invention to the missile-eye intersection echo method generates the target dynamic echo illuminated by the detection antenna for a target with a known geometric shape, which specifically includes the following step:

[0044] S1. Construct an elliptical cylindrical enclosing surface according to the length direction of the target, completely enclosing the target;

[0045] S2. Obtain the distribution data of the near-field scattering function on the surrounding surface based on the orthogonal dipoles;

[0046] S3. During the projectile-target rendezvous process, the weighted calculation of the detection antenn...

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Abstract

The present invention relates to a method for transforming projectile-eye intersection echoes using a near-field scattering function inverted by a local scattering source. For a target with a known geometric shape, the dynamic echo of the target is generated under the illumination of the detection antenna, including: S1, according to the target The length direction of the ellipse to construct an elliptical cylindrical enclosing surface to completely enclose the target; S2. Based on the orthogonal dipoles, obtain the distribution data of the near-field scattering function on the enclosing surface; S3. The field scattering function performs the weighted calculation of the detection antenna pattern; S4, based on the weighted near-field scattering function, inverts and calculates the local scattering source on the target surface; S5, generates the dynamic echo of the target based on the inverted local scattering source. The invention can realize fast calculation of bullet-to-eye intersection echoes under different observation antennas, de-correlate the target near-field scattering function with the observation antennas, and improve the applicability of characteristic data.

Description

technical field [0001] The invention relates to a method for converting near-field scattering function to missile-eye intersection echo, in particular to a method for converting near-field electromagnetic scattering characteristic data based on local scattering source inversion to generate missile-eye intersection echo, which belongs to radar target electromagnetic The technical field of scattering properties processing. Background technique [0002] The commonly used radar echo simulation methods are mainly based on the target discrete network model and based on target scattering points. Both of them need to be calculated directly in combination with the observation antenna pattern. The obtained electromagnetic scattering calculation data is closely related to the observation antenna, and it is difficult to share the scattering data of different observation antennas. At the same time, the method based on the target discrete grid model generally involves a large amount of c...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/41
CPCG01S7/418
Inventor 梁子长高伟
Owner SHANGHAI RADIO EQUIP RES INST
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