Method for improving testability of Doppler radar

A Doppler radar, testing technology, applied in the direction of measuring device, radio wave measurement system, radio wave reflection/re-radiation, etc., can solve the problem that the shape of Doppler radar is not conformal to the carrier, Doppler radar test Inconvenience, large installation space and other problems, to achieve the effect of improving testability, reducing complexity, and reducing the difficulty of testing

Pending Publication Date: 2021-07-16
BEIJING HUAHANG RADIO MEASUREMENT & RES INST
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Problems solved by technology

[0005] In view of the above analysis, the embodiment of the present invention aims to provide a method for improving the testability of Doppler radar to solve one of the following problems: (1) The shape of the existing Doppler radar is not conformal to the carrier; (2) The required installation space is large and the installation accuracy is poor; (2) The testability of the Doppler radar conformal to the carrier and the small installation space is guaranteed, and the problem of inconvenient testing of the miniaturized Doppler radar is solved

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  • Method for improving testability of Doppler radar
  • Method for improving testability of Doppler radar

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Embodiment 1

[0069] The present invention adopts the design idea of ​​combining the conformal structure and the selection of the extension, the form of the extension, and the arrangement of the extension to realize the conformality between the Doppler radar and the installation surface, the required installation space is small (i.e. miniaturization), and the Doppler radar is improved. Radar testing convenience and reliability.

[0070] Specifically, this embodiment provides a method for improving the testability of the Doppler radar. The Doppler radar has a conformal structure with the installation surface, and each extension of the Doppler radar is placed in the cavity of the conformal structure. The method comprises the steps of:

[0071] (1) Determine the conformal structure of the Doppler radar according to the size of the Doppler radar applicable scene;

[0072] (2) Carry out the modular design and test of the radar extension according to the determined conformal structure;

[0073]...

Embodiment 2

[0101] This embodiment introduces in detail the conformal structure that realizes the conformality of the Doppler radar and the installation surface, and the arrangement of the Doppler radar in the conformal structure, so as to understand the improvement of the testability of the small Doppler radar in Embodiment 1. Methods.

[0102] 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 openings at both ends. The inner cavity of the main body frame 7 is used to accommodate the radar main body; the upper cover plate 8 is arranged on the cylinder body On the upper end of the structure, the periphery of the lower end surface of the cylinder structure has a convex edge 7.1, and the surface of the convex edge 7.1 is conformal to the mounting surface of the aircraft;

[0103] The conformal structure of...

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Abstract

The invention relates to a method for improving testability of a Doppler radar, which belongs to the technical field of speed measuring 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 installation precision is poor, and the problems of inconvenient test and poor testability of the miniaturized Doppler radar are solved. The method for improving the testability of the Doppler radar comprises the steps of determining a conformal structure of the Doppler radar, carrying out modular design and extension test on radar extensions, installing and arranging the extensions, sealing an opening in the upper end of the conformal structure after the extensions of the radar are installed, completing the assembly of the miniaturized Doppler radar and the like, and then carrying out complete machine test. The testability and the test reliability of the Doppler radar are improved.

Description

technical field [0001] The invention relates to the technical field of speed measuring radar, in particular to a method for improving the testability 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 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 components of the radar carrier velocity vector measured by the...

Claims

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Application Information

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IPC IPC(8): G01S7/40G01S7/02G01S7/03G01S13/60F16F15/08
CPCG01S7/40G01S7/4004G01S7/02G01S7/032G01S13/60F16F15/08
Inventor 贾兴豪邓广宁薛崇峰林峰
Owner BEIJING HUAHANG RADIO MEASUREMENT & RES INST
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