Adjustable RCS mechanism for radar target

Abstract

The invention discloses an adjustable RCS mechanism for a radar target, which comprises a driving assembly, a first shell, a second shell and a third shell. The first shell, the second shell and the third shell are each of a hemispherical cambered surface structure; the first shell is sleeved with the second shell and the third shell, the second shell and the third shell are rotationally connected with the first shell, and the first shell, the second shell and the third shell share the same sphere center and define a containing cavity; and the second shell is provided with a first notch, the third shell is provided with a second notch, and the first notch and the second notch define an opening capable of being communicated with the containing cavity. The driving assembly is in transmission connection with the second shell and the third shell so as to drive the second shell and the third shell to synchronously and oppositely rotate. The opening area is adjusted by adjusting the relative positions (rotation angles) of the three hemispherical cambered surface structures, and the size of the opening area determines the signal receiving and reflecting capability of the target mechanism in the placement cavity, so that the purpose of adjusting the RCS of the radar target is achieved.

Description

technical field [0001] The invention relates to the technical field of radar targets, in particular to an adjustable RCS mechanism for radar targets. Background technique [0002] Radar targets are mainly used for range assessment and testing of weapon systems, seekers and other equipment. RCS, also known as radar cross-section, is the main indicator parameter of radar targets. It represents a physical quantity of the echo intensity generated by the target under the irradiation of radar waves; the energy of radar targets and scattering can be expressed as an effective area and incident power density. The product of , this area is usually called the radar cross-section area. With the upgrading of weapons and equipment, the RCS of radar targets has put forward dynamic requirements such as unpredictable changes in signals. The RCS in the target can realize continuous change to meet the dynamic requirements of the radar target. [0003] Existing radar targets do not have the ...

AI Technical Summary

Problems solved by technology

For example, the patent of "a portable detachable omnidirectional radar target" with the application number "201420732346.6" has the function of realizing the detachable function of the radar target, but the RCS of the radar target cannot be adjusted.

Another example is the patent of "a radar target design method and device" with the application number "201910006970.5", which is a design idea of ​​a radar target, and the RCS of the radar target cannot be adjusted.

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