A Compact Field RF Target Simulator

Abstract

The invention belongs to simulation test technology and relates to a compact field target simulator. The compact field radio frequency target simulator of the present invention includes a reflector, a feed source, and a feed source bracket that supports multi-degree-of-freedom adjustment of the feed source, wherein the reflector is a cut parabolic antenna, and the feed source is a pyramidal horn jacket choke circle, and the feed is located at the focal plane of the reflector. The invention utilizes the principle that the feed source horn is placed on the focus of the rotating parabola, and the reflection surface is irradiated to form a parallel wave to simulate the target echo; by designing a suitable feed source, processing a high-precision reflection surface, and processing the edge of the reflection surface, etc., the static area of ​​the field is controlled to tighten the quiet zone The characteristics of electromagnetic waves make it close to the far-field conditions of the target echo, and the structure is compact, the form is simple, the volume is small, and the cost is low.

Description

A Compact Field RF Target Simulator technical field The invention belongs to simulation test technology and relates to a compact field target simulator. Background technique The compact field at home and abroad is mainly used for the measurement of the target RCS. Generally, a large parabolic reflector is placed in a shielded dark room, a certain distance from the ground, the feed horn is placed at the focus of the ground, and the electromagnetic wave is irradiated to the reflected On the surface, parallel waves are generated to irradiate the target, and the RCS of the target is measured by receiving the echo. This kind of reflective surface is large and heavy, and requires a large reflective space. At present, other domestic units have not used the compact field to make target simulators for missile hardware-in-the-loop simulation tests. Domestic missile target simulators also mainly adopt the array type. The array type target simulator has complex structure, large volu...

AI Technical Summary

Problems solved by technology

Domestic missile target simulators also mainly adopt the array type. The array type target simulator has a complex structure, large volume, long development cycle, and a large amount of development funds.

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