Radar Test Chamber Reflector Layout Without a Metallic Rotator
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Solution Overview
Problem
The existing methods for evaluating radar performance are time-consuming and costly, and they introduce noise due to the operation of a metallic rotator, which also limits the design of the chamber.
Innovation Solution
An apparatus with a polyhedral chamber and multiple reflector parts positioned at different angles and distances to reflect radio waves, eliminating the need for a rotator, and incorporating a simulation part and absorbent to enhance performance measurement efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a rotator is used to measure radar performance, then the radar can be tested for various angles and distances, but the measurement time increases and noise is generated
Solution Approach 1:
The chamber is divided into multiple reflective surfaces (first reflective surface, second reflective surface, third reflective surface) positioned at different locations. Each surface reflects radar waves to simulate targets at different angles and distances, eliminating the need for a single rotating component and enabling simultaneous multi-angle measurement.
Solution Approach 2:
The mechanical rotator system is replaced with a static chamber structure using electromagnetic reflection principles. Instead of mechanically rotating the radar or target, the invention uses fixed reflective surfaces to redirect radar waves, achieving the same measurement capability without moving parts.
2Adaptability or versatility
If a metallic rotator is installed in the chamber, then the radar can be rotated for testing, but the rotator occupies large volume and limits chamber design
Solution Approach 1:
The single large rotator is segmented into multiple smaller reflective surfaces distributed throughout the chamber. These surfaces are positioned at specific locations (front, side, rear walls) and each contributes to simulating targets in different directions, reducing the volume occupied while maintaining testing versatility.
Solution Approach 2:
Instead of using a single rotating component in three-dimensional space, the invention distributes multiple reflective surfaces across different spatial dimensions and orientations. This allows the chamber to utilize its full volume efficiently, with each surface contributing to a specific angular range, thereby maximizing testing capability within the available chamber space.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach reduces the time and cost of evaluating radar performance, minimizes noise, and offers greater flexibility in chamber design by eliminating the need for a rotator, allowing for more accurate and efficient measurement of radar performance.
Implementation Method 1
at least one reflector part installed on a second inner surface of the chamber part and configured to reflect radio waves emitted from the radar
Data Source
AI summary
An apparatus for evaluating radar performance according to the present disclosure includes a chamber part having a hollow shape having a space therein, a radar installed on a first inner surface of the chamber part, and at least one reflector part installed on a second inner surface of the chamber part and configured to reflect radio waves emitted from the radar.