A high temperature target rcs test calibration method

A target, room temperature technology, applied in the field of high temperature target RCS test calibration, can solve the problems of low test efficiency and long heating time, and achieve the effect of long heating time, improved efficiency and low efficiency

Active Publication Date: 2021-10-19
BEIJING INST OF ENVIRONMENTAL FEATURES
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Problems solved by technology

The disadvantage of this method is that the high-temperature standard body calibration heating time is long, resulting in low test efficiency

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  • A high temperature target rcs test calibration method
  • A high temperature target rcs test calibration method
  • A high temperature target rcs test calibration method

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Embodiment Construction

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] The purpose of the present invention is to test RCS data of high temperature targets. In the actual scene, the temperature field around the high-temperature target is significantly different from the normal temperature. According to the heat diffusion equation, the air temperature at different positions in the space caused by the high-...

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Abstract

The present invention relates to a method for testing and calibrating a high-temperature target RCS. An embodiment of the method includes: collecting echo level data of a calibration body in a normal temperature state, and collecting echo level data in a room at a normal temperature state; After the target to be measured is heated to a specified temperature, the echo level data of the target to be measured is obtained; according to the echo level data of the calibration body, the echo level data of the empty room, and the echo The level data and the predetermined theoretical RCS data of the calibration body are used to calculate the RCS data of the target to be measured. This embodiment can realize rapid test and calibration of high temperature target RCS.

Description

technical field [0001] The invention relates to the technical field of RCS testing, in particular to a high-temperature target RCS testing calibration method. Background technique [0002] Some parts of the aircraft will have different degrees of temperature changes during the flight, such as the head, air inlet and tail nozzle of the high-speed aircraft. As the requirements for stealth performance become higher and higher, it is more and more important to obtain the change of stealth performance of the target under high temperature. For the stealth performance test of the target at high temperature, the research of various domestic units basically focuses on the high-temperature material parameters and reflectivity test. The research on the high-temperature RCS test of the stealth target is still in its infancy, and there is no standard test and calibration method. According to the calibration method of the target RCS test at normal temperature, the test at high temperatur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/40
CPCG01S7/40
Inventor 王岩汪勇峰吕鸣戚开南赵轶伦袁晓峰
Owner BEIJING INST OF ENVIRONMENTAL FEATURES
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