Speed measurement Doppler radar damping device

A technology of Doppler radar and vibration reduction device, which is applied in the direction of measuring device, radio wave measurement system, radio wave reflection/re-radiation, etc., can solve the problem of damage to installation accuracy, Doppler radar vibration environment is large, and it is not suitable for missiles. Problems such as flight vibration environment and other problems, to achieve the effect of easy replacement, reduced complexity, and good adaptability to the working environment

Pending Publication Date: 2020-06-19
BEIJING HUAHANG RADIO MEASUREMENT & RES INST
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Problems solved by technology

[0007] 2. In the missile-borne environment, the Doppler radar is subjected to a relatively large vibration environment. The working state of the signal processing and receiving combination in the existing Doppler radar host is not suitable for the vibration environment of the missile-borne flight. It needs to be installed The vibration reduction system counteracts the interference of projectile vibration
[0008] 3. Since the accuracy of the existing Doppler radar is determined by the installation accuracy, adjustment and calibration, if the installation of the vibration reduction system destroys its installation accuracy

Method used

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Embodiment Construction

[0026] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0027] In this embodiment, a speed-measuring Doppler radar vibration reduction device, the main casing 4 is a rectangular cylinder with upper and lower ends open, and the flange frame 6 is provided with steps for installing the conformal radome 5, the conformal radome 5 It is fixed and installed on the flange frame 6 by screws, and the flange frame is fixed on the projectile body by screws and horizontal radial positioning pins, and the arc of the conformal radome 5 conforms to the projectile body.

[0028] Install vibration reduction system 3 in signal processing 1 and receiving combination 2.

[0029] In the process of Doppler radar missile-borne research, a variety of methods were tried, and a large number of researches were carried out. Finally, the radar and missile body were conformed and the vibration reduction system was installed on key components for struct...

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Abstract

The invention provides a speed measurement Doppler radar damping device, which mainly comprises a signal processing and receiving combination and an antenna shell, and is characterized by comprising amain shell and a damping system, wherein the upper end and the lower end of the main shell are open, the conformal radome is fixed on the projectile body through a flange frame on the main shell, andthe radian of the conformal radome is conformal with the projectile body; and a vibration reduction system is additionally arranged on the signal processing and receiving combination. The method improves the anti-interference capability, measurement precision and reliability of the Doppler radar, and meets the requirements of the Doppler radar on a high-speed aircraft.

Description

technical field [0001] The invention relates to a speed measuring Doppler radar vibration damping device, in particular to a design of a speed measuring Doppler radar vibration damping device used for missiles. Background technique [0002] The Doppler speed measuring radar is used to provide navigation information such as three-axis speed for the inertial / satellite navigation system, so as to realize the inertial navigation / Doppler integrated navigation function. During the working process, based on the Doppler effect, the speed information is obtained based on 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 parameters of the radar are determined, the Doppler frequency fd is only related to the velocity of the radar carrier relative to the ground. The various components of the radar carrier velocity vector measured by the beam antenna (that is, the longitudina...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/02G01S13/58
CPCG01S7/02G01S13/58
Inventor 邓广宁贾兴豪
Owner BEIJING HUAHANG RADIO MEASUREMENT & RES INST
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