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Method using two-support one-suspension support system to realize conical scanning

A technology of conical scanning and support system, applied in radio wave measurement systems, instruments, etc., can solve problems such as missing great circle scanning data

Active Publication Date: 2018-04-24
BEIHANG UNIV
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Problems solved by technology

[0020] In order to solve the problem of lack of great circle scanning data, the present invention proposes a method for realizing conical scanning through multi-axis linkage in the support system of two supports and one suspension

Method used

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  • Method using two-support one-suspension support system to realize conical scanning
  • Method using two-support one-suspension support system to realize conical scanning
  • Method using two-support one-suspension support system to realize conical scanning

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Embodiment Construction

[0048] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0049] like figure 1 As shown, in the two-support one-hang support system, the one-dimensional turntable is under the pitching rotation mechanism, the turntable surface is parallel to the ground, and the rotation axis z of the turntable is perpendicular to the ground; the support rods I and II are fixed on the turntable and are perpendicular to the turntable surface , the two poles are mechanically connected to the aircraft at points b and c; the sling fixed on the roof is connected to point a on the back of the aircraft, the sling coincides with the axis of the turntable, and the aircraft is fixed at points a, b, and c In the air; the coordinate system of the turntable is xyz, the target coordinate system is x'y'z', the angle between the x-axis and the x'-axis is the pitch angle α of the aircraft, and the pitch angle α can be changed by adjus...

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Abstract

The invention relates to a method using two-support one-suspension support system to realize conical scanning; when the two-support one-suspension support system carries out a RCS test, a one-dimension rotary table is below a pitching rotation mechanism, the table surface is parallel to the ground, and the rotary table rotary shaft z is vertical to the ground; two poles are fixed on the rotary table and vertical to the rotary table surface; the two poles are mechanically connected with the plane in b and c points; a suspension rope fixed on the roof is connected with the a point on the back side of the plane, and overlaps with the rotary table axis; the plane can be fixed in the air through the a, b and c points. The other content of the invention is to use a multi-shaft linking mode to realize the conical scanning method; the rotary axis of a large scale target in a measuring process is vertical to the target self, and not vertical to the ground; compared with a conventional foam support and low scattering support, the two-support one-suspension support system is high in bearing ability, and the target erection mechanism cannot damage the target, thus providing excellent application prospects in RCS measurement of a 1:1 real equipment plane.

Description

technical field [0001] The invention belongs to the field of low-observable technology, and in particular relates to an application method and technology of a target support system in RCS measurement of a real combat stealth aircraft. Background technique [0002] In the field of CNC machine tools, multi-axis linkage has been relatively mature. However, in the measurement system, especially in the RCS test of 1:1 actual aircraft, the multi-axis linkage technology is still a new technology to be explored. [0003] In RCS measurement, the rational design of the support system is a complex task. For targets with different sizes and weights, the choice of bracket system should also be different. [0004] Although the method of completing the cone scanning with two cranes and one crane through five-axis linkage has many advantages, in order to ensure the safety of the aircraft test system, this technology is not used in the test of large stealth aircraft such as F22. On the ot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/41
CPCG01S7/41
Inventor 何国瑜李志平王正鹏武建华
Owner BEIHANG UNIV
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