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Method for improving safety of Doppler radar

A Doppler radar and safety technology, applied in the field of improving the safety of Doppler radar, can solve the problems affecting the overall performance of the radar performance carrier, lack of maintainability, large installation space, etc., to ensure electromagnetic shielding ability, Improved electromagnetic shielding capability and reduced installation space

Active Publication Date: 2021-07-16
BEIJING HUAHANG RADIO MEASUREMENT & RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the harsh environment of the aircraft, the shape of the existing Doppler radar is mostly a rectangular structure, and it is not conformal to the carrier. It requires a large installation space and low installation accuracy, which seriously affects the performance of the radar and the overall performance of the carrier.
In addition, existing Doppler radars are not interchangeable once installed and are not maintainable or maintainable

Method used

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  • Method for improving safety of Doppler radar
  • Method for improving safety of Doppler radar
  • Method for improving safety of Doppler radar

Examples

Experimental program
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Effect test

Embodiment 1

[0069] The invention adopts the design idea of ​​combining conformal structure and extension selection, extension form, and extension arrangement to improve the electromagnetic shielding ability, environmental adaptability and mechanical environment of the radar to realize the Doppler radar and the installation surface. The installation space is small (ie miniaturization), and the safety and reliability of the miniaturized Doppler radar are improved.

[0070] Specifically, this embodiment provides a method for improving the security of Doppler radar, such as figure 1 As shown, the Doppler radar has a conformal structure with the mounting surface, and each extension of the Doppler radar is placed in the cavity of the conformal structure, and the method includes the following steps:

[0071] S1: Protect the surface of each extension;

[0072] Specifically, considering that the radar requires high-altitude operation and the working environment is usually harsh, in order to ensu...

Embodiment 2

[0113] This embodiment introduces in detail the conformal structure that realizes the conformal structure of the Doppler radar and the mounting surface, and the arrangement of the Doppler radar in the conformal structure, so as to facilitate the understanding of the improvement of the safety of the miniaturized Doppler radar in the first embodiment Methods.

[0114] First, the Doppler radar is conformal to the mounting surface, as figure 2 , Figure 9-10 As shown, the conformal structure includes a main body frame 7 and an upper cover plate 8, the main body frame 7 is a cylindrical structure with two ends open, and the inner cavity of the main body frame 7 is used to accommodate the radar main body; the upper cover plate 8 is detachably arranged on the The upper end of the cylindrical structure and the periphery of the lower end surface of the cylindrical structure have a convex edge 7.1, and the surface of the convex edge 7.1 is conformal to the installation surface of the ...

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Abstract

The invention relates to a method for improving the safety of a Doppler radar, belongs to the technical field of speed measurement radars, and solves the problems that the appearance of an existing Doppler radar is not conformal with a carrier, the required installation space is large, and the safety of the Doppler radar is guaranteed. The method for improving the safety of the Doppler radar comprises the following steps of: S1, performing protection treatment on the surface of each extension; S2, arranging each extension set of the radar in a shielding box body structure of each extension set, so as to realize the modular design of each extension set of the radar; S3, setting connectors of all the extensions to be in a differential structural form, and setting identification marks; S4, installing the shielding box bodies of all the extension sets in a main body frame of a conformal structure through using vibration reduction structures; and S5, installing an upper cover plate of the conformal structure, and sealing each extension of the radar in a cavity of the conformal structure. According to the method, the Doppler radar and the mounting surface can be conformal, the mounting space is small, and the safety is high.

Description

technical field [0001] The invention relates to the technical field of speed measuring radar, in particular to a method for improving the safety of Doppler radar. Background technique [0002] There are many kinds of existing aircraft, including airplanes, unmanned aerial vehicles, aerospace equipment, and electronic equipment. Doppler radar is used to provide navigation information such as three-axis velocity for satellite navigation systems to realize navigation / Doppler integrated navigation functions. During the working process, based on the Doppler effect, the speed information is obtained by measuring the frequency difference between the electromagnetic wave radiated by the radar and the echo. The difference in frequency is the Doppler frequency shift. When the radar parameters are determined, the Doppler frequency fd is only related to the moving speed of the radar carrier relative to the ground. The components of the radar carrier velocity vector measured by the bea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/60G01S7/03G01S7/02F16F15/08
CPCG01S13/60G01S7/032G01S7/02F16F15/08Y02A90/10
Inventor 贾兴豪邓广宁薛崇峰彭建军
Owner BEIJING HUAHANG RADIO MEASUREMENT & RES INST
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