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Double-circumference composite scanning passive radar direction finding method

A composite scanning and passive radar technology, applied in the field of target direction finding, can solve problems such as system cost and complexity increase, and achieve the effects of reducing side lobe height, system complexity and cost, and abundant effective echo data.

Pending Publication Date: 2020-09-22
ZHOUKOU NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, compared with the single-receiver direction-finding system, the system cost and complexity of the dual-receiver composite scanning direction-finding system have increased

Method used

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  • Double-circumference composite scanning passive radar direction finding method
  • Double-circumference composite scanning passive radar direction finding method
  • Double-circumference composite scanning passive radar direction finding method

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Embodiment Construction

[0042] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0043] See attached figure 1 In view of the relatively high sidelobe problem of passive radar direction finding, an embodiment of the present invention discloses a dual-circle compound scanning passive radar direction finding method, which includes:

[0044] Step S1: Establish a dual-circle compound scanning passive radar direction finding model, please refer to the attachment for details figure 1 , Where, let the length of rod 1 be r 1 , T...

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Abstract

The invention discloses a double-circumference composite scanning passive radar direction finding method. A double-circumference composite scanning direction finding system is adopted, and the motiontrail of a receiver is more complex than the circular motion trail in the receiver rotation direction finding technology in the prior art, so that the effective data receiving area of the receiver isenlarged, and the received effective echo data is richer. According to the double-circumference composite scanning passive radar direction finding method, the sidelobe height of the direction findingresult can be effectively reduced, and compared with a double-receiver direction finding system, the cost is greatly reduced.

Description

Technical field [0001] The invention relates to the technical field of target direction finding, and more specifically to a dual-circle compound scanning passive radar direction finding method. Background technique [0002] Target direction finding is an important part of radar detection. Among them, passive radar direction finding is an important method in radar detection. [0003] At present, the passive radar direction finding generally adopts a circular scanning form. Because the signal processing results show a zero-order Bessel function convergence form, the theoretical peak sidelobe ratio is -7.9dB. Because of its high side lobes, there will be serious interference between adjacent targets during the direction finding process, and even the main lobe of a weak target is submerged by the side lobes of an adjacent strong target. In order to reduce the sidelobes, researchers have proposed a dual-receiver compound scanning direction finding method. However, compared with a sin...

Claims

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Application Information

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IPC IPC(8): G01S7/41G01S13/62
CPCG01S7/418G01S13/62Y02A90/10
Inventor 刘玉春王二垒王强程全朱磊豆桂平
Owner ZHOUKOU NORMAL UNIV