FMCW Radar Target Emulator with Synchronized Modulation
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Solution Overview
Problem
Developing Advanced Driver Assistance Systems (ADAS) for vehicles is challenging due to the difficulty in verifying proper operation across various real-life scenarios, as comprehensive testing is time-consuming and unethical, especially when evaluating radar sensors, which require synchronization to emulate consistent targets during all phases.
Innovation Solution
An apparatus and system that generate emulated radar reflection signals by detecting radar signal frames, adapting control signals based on current radar parameters, and using a processor to control an emulation transmitter, enabling synchronized target emulation in virtual platforms for vehicular radar testing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If real-life testing is conducted to verify ADAS operation, then comprehensive scenario coverage is achieved, but testing becomes extremely time-consuming and unethical due to safety concerns
Solution Approach 1:
The patent creates virtual copies of real-world driving scenarios through a virtual platform that emulates radar targets and environmental conditions. Instead of physically testing in diverse real-life scenarios, the system generates digital replicas of these scenarios, allowing comprehensive verification without the time and safety constraints of physical testing.
Solution Approach 2:
The patent introduces a virtual platform as an intermediary between the radar system and real-world scenarios. This intermediary layer allows testing to proceed in a controlled virtual environment while still validating the radar's performance against realistic driving conditions, eliminating the need for extensive physical testing.
2Reliability
If real-life testing is conducted to verify ADAS operation, then comprehensive scenario coverage is achieved, but testing becomes unethical due to safety concerns
Solution Approach 1:
The patent creates virtual copies of real-world driving scenarios through a virtual platform that emulates radar targets and environmental conditions. Instead of physically testing in diverse real-life scenarios, the system generates digital replicas of these scenarios, allowing comprehensive verification without the time and safety constraints of physical testing.
Solution Approach 2:
The patent introduces a virtual platform as an intermediary between the radar system and real-world scenarios. This intermediary layer allows testing to proceed in a controlled virtual environment while still validating the radar's performance against realistic driving conditions, eliminating the need for extensive physical testing.
3Manufacturing precision
If synchronized target emulation is implemented across all radar phases, then consistent target emulation is achieved, but system complexity increases
Solution Approach 1:
The patent implements a unified virtual platform that handles multiple radar phases and target types through a single synchronized emulation system. Rather than creating separate emulation systems for each radar phase, the virtual platform provides universal target emulation across all phases, maintaining consistency while managing complexity through integration.
Solution Approach 2:
The system uses feedback from radar signal detection to continuously adjust and synchronize target emulation parameters. The virtual platform monitors radar transmissions and adapts its target emulation in real-time, ensuring consistent target representation across all radar phases through closed-loop control.
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 allows for efficient and safe testing of vehicular radar systems by simulating diverse scenarios, ensuring consistent target emulation across all phases, thereby enhancing the development and validation of ADAS without the need for extensive real-world testing.
Implementation Method 1
a radar detector configured to detect a radar signal frame emitted by a device under test (DUT)
Implementation Method 2
Frequency modulated continuous wave (FMCW) radar target emulation
Data Source
AI summary
An apparatus is for generating an emulated radar reflection signal of a target. The apparatus includes a radar detector configured to detect a radar signal frame emitted by a device under test (DUT), an emulation transmitter configured to generate an emulated radar reflection signal of a target being emulated, and a processor configured to generate control signals which control the emulation transmitter according to at least one characteristic of the target being emulated. The processor is further configured to determine a current radar parameter among plural possible radar parameters of the radar signal frame of the DUT, and to adapt the control signals which control the emulation transmitter according to the determined current radar parameter of the radar signal frame of the DUT.