Radome Measurement Using Relative Motion to Separate EM Reflection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Radar systems in the automotive industry, particularly those operating at high frequencies, face signal attenuation and reflection issues due to radome materials, which affect detection accuracy and reliability, especially in weather conditions and aesthetic concealment requirements.
Innovation Solution
A measuring device and method that utilize a transmitter and receiver to perform multiple measurements during relative motion between the device and the target area, allowing for the separation of transmission and reflection effects, enabling accurate determination of radome properties such as transmission and reflection coefficients.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a radome is used to cover the radar, then protection against external factors and aesthetic concealment are improved, but signal attenuation and reflection increase
Solution Approach 1:
The invention changes the operational parameters by performing multiple measurements at different relative positions between the measuring device and the target area. This allows the system to capture variations in signal transmission and reflection characteristics, enabling accurate determination of radome properties despite the attenuation and reflection effects caused by the radome material.
2Object-affected harmful factors
If a radome is used to cover the radar, then protection against external factors and aesthetic concealment are improved, but detection accuracy decreases
Solution Approach 1:
The invention segments the measurement process into multiple discrete measurements taken at different relative positions. By dividing the overall measurement into multiple positional samples, the system can isolate and analyze specific transmission and reflection effects, thereby maintaining detection accuracy despite the presence of the radome.
Solution Approach 2:
The invention changes the spatial parameter by varying the relative position between the measuring device and target area across multiple measurements. This parameter change enables the system to distinguish between direct transmission signals and reflected signals, improving measurement precision in the presence of radome interference.
3Measurement precision
If multiple measurements at different relative positions are performed, then accuracy of determining radome properties is improved, but measurement time increases
Solution Approach 1:
The invention employs periodic action by performing measurements at systematically varied relative positions. This structured periodic measurement approach allows for efficient data collection that balances accuracy requirements with time constraints, as the measurements follow a defined pattern rather than requiring exhaustive sampling.
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 enhances the accuracy of radar system performance by isolating and measuring the effects of radome materials on electromagnetic waves, improving detection capabilities and compliance with safety standards despite aesthetic and environmental constraints.
Implementation Method 1
a transmitter (12) configured to emit electromagnetic waves along an antenna axis (15)
Implementation Method 2
a receiver (14) configured to receive electromagnetic waves emitted by the transmitter (12)
Implementation Method 3
the radome may cause unwanted reflections, attenuation, beam deflection
Implementation Method 4
the radome may cause unwanted reflections, attenuation, beam deflection
Data Source
Figure 1a~1b
Figure 2a~2b
Figure 3a
AI summary
The present invention relates to a method of measuring a target area of a device under test comprising providing a measuring device comprising a transmitter configured to emit electromagnetic waves along an antenna axis and a receiver configured to receive electromagnetic waves emitted by the transmitter; arranging the measuring device and/or the device under test such that the antenna axis intersects the target area; generating a relative motion between the measuring device and the target area; the measuring device performing a plurality of measurements during the relative motion to thereby obtain a measured data set. The present invention also relates to a measuring device and a measuring system.