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Assessing how interference sources negatively impact the functionality of an automotive radar sensor (the victim) requires a radar target simulator (RTS) to act as the main target vehicle. An arbitrary waveform generator acts as a versatile interference source and a signal analyzer monitors the interference signal’s characteristics. These characteristics include power level, bandwidth, and repetition rate. Simulated interference signals can vary from simple continuous wave (CW) and frequency modulated continuous wave (FMCW) chips to more complex ones such as phase-modulated continuous wave (PMCW), orthogonal frequency-division multiplexing (OFDM), or other custom modulations of choice.
During the test, engineers increase the power level of the interferer signals until the victim radar starts to operate abnormally. A trigger function synchronizes the signals between the victim and the interferers. To save time and labor, use automation software to run the tests repeatedly using multiple preprogrammed interferer signals and power levels. This test procedure complies with ETSI TS 103 567 on signal interferer handling.
How to Simulate Interference for Automotive Radar Testing
The Keysight M8195A is a high-speed AWG with up to 65 GSa/s sample rate and 25 GHz bandwidth on up to 4 channels per module.
Amplitude | 2,000 mVpp diff max |
DAC Resolution |
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Effective Number of Bits (ENOB) | 4.9 bits |
Frequency Range |
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Intrinsic Jitter | 200 fs |
Key Attributes | High speed AWG with up to 65 GSa/s sample rate and 25 GHz bandwidth on up to 4 channels per module |
Number of Outputs | up to 4 channels (diff.) per module |
Spur Free Dynamic Range | 40 dBc |
Typical Rise/Fall Time | 18 ps |
Bandwidth | 25 GHz |
Number of Channels |
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Form Factor |
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Max Memory Depth | 16 GSa |
Type |
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Signal Type |
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Functionality |
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Max Sample Rate | 65 GSa/s |
Slots |
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How to Simulate Interference for Automotive Radar Testing
76 to 81 GHz full instantaneous bandwidth with exceptional gain flatness complemented with over-the-air calibration feature enabling accurate target simulation.
Distance Accuracy | ±0.05 meters |
Distance Simulation | 3 to 300 meters |
In Band Spurious Signals | < -40 dBc |
Doppler Simulation | ±500 km/h |
How to Simulate Interference for Automotive Radar Testing
Generate interference signals to robustly test automotive radar modules
Additional resources for automotive radar testing
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