Radar Emulator With Synchronized Interference Signal Testing
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Solution Overview
Problem
Existing radar sensor testing setups fail to simulate scenarios with overlapping interference signals effectively and efficiently, requiring complex setups that do not perfectly replicate real-world conditions.
Innovation Solution
A radar emulator that integrates a response signal generator and interference signal generator within a single device, synchronized to produce a combined output signal, reducing integration efforts and setup complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate devices are used for generating response signals and interference signals, then signal generation capabilities are comprehensive, but device complexity and integration efforts increase significantly
Solution Approach 1:
The patent combines the response signal generator and interference signal generator into a single integrated device. The response signal generator generates signals simulating target responses, while the interference signal generator produces signals representing interfering radar sources. Both signal types are generated within one device and combined through an adder, eliminating the need for multiple separate devices and reducing integration complexity while maintaining comprehensive signal generation capabilities.
2Reliability
If complex testing setups are used to simulate overlapping interference signals, then simulation accuracy improves, but setup complexity and cost increase
Solution Approach 1:
The patent integrates multiple signal generation functions into a single device that can simultaneously produce response signals and interference signals with overlapping time characteristics. The synchronization mechanism ensures that interference signals are generated at the same time as response signals, accurately simulating real-world scenarios where multiple radar signals overlap, thereby improving simulation accuracy without requiring complex multi-device setups.
Solution Approach 2:
The interference signal generator creates copies of radar signals that mimic interfering sources from other vehicles or infrastructure. By generating synthesized interference signals that replicate real-world radar emissions, the system achieves accurate simulation of overlapping signal scenarios without needing physical replicas of other radar systems.
3Ease of manufacture
If response signal generator and interference signal generator are integrated in a single device, then integration efforts are reduced, but signal synchronization complexity may increase
Solution Approach 1:
The patent integrates both signal generators within a single device architecture, sharing common components such as clock sources, control logic, and signal processing units. This integration simplifies manufacturing and reduces the number of external connections required, while the shared resources naturally facilitate signal synchronization between the response and interference signal generators.
Data Source
AI summary
The present disclosure relates to a radar emulator for testing a radar sensor. The radar emulator comprises a radar signal receiver configured to receive a radar signal having at least one characteristic. The radar emulator has a radar signal processor configured to process the radar signal received. The radar emulator has a response signal generator configured to generate a response signal to the radar signal received. The radar emulator has an interference signal generator configured to generate an interference signal that is synchronized with the response signal in time. The radar emulator has an adder configured to combine the interference signal and the response signal in order to obtain a combined output signal that comprises the response signal generated and the interference signal generated. Further, a method of testing a radar sensor is disclosed.