Driver assistance systems - Car Radar

Vehicles are increasingly being equipped with radar sensors that support drivers in critical situations, helping to reduce the number of accidents. Rohde & Schwarz offers T&M solutions for characterizing radar signals and components to ensure troublefree operation of these sensors.

Radar Signal Analysis

  • R&S®FSW Signal and Spectrum Analyzer
    • Frequency range from 2 Hz to 8/13.6/26.5/43.5/55/67/85 GHz (with external harmonic mixers from Rohde & Schwarz up to 110 GHz)
    • Low phase noise of -137 dBc (1Hz) at 10 kHz offset (1GHz carrier)
    • Up to 2 GHz analysis bandwith
    • Up to 50 MHz RBW
  • R&S®FSW-K60C Transient Chirp Measurement
    • Detecs and analyzes frequency-modulated radar signals
    • Displays important parameters such as chirp rate deviation and chirp length in a result table or graphically (RF spectrum and amplitude, frequency and phase modulation vs. time)
    • Identifies even brief signal impairments using the spectrogram mode

RF Component Test

Radar Signal Generation

  • R&S®SMZ Frequency Multiplier
    • Available for different frequency bands between 50 and 170 GHz
    • Wide dynamic range
    • Variable output power
    • High signal quality
    • Easy handling
  • R&S®SMF100A Microwave Signal Generator
    • Frequency range from 100 kHz to 43.5 GHz
    • Frequency extension up to 170 GHz with external frequency multiplier
    • Excellent SSB phase noise of typ. -120 dBc (at 10 GHz; 10 kHz carrier offset)
    • High output power of typ. up to +25 dBm
  • R&S®SMB100A RF and Microwave Signal Generator
    • Frequency range from 9kHz to 6 GHz or from 100 kHz to 40 GHz
    • Excellent SSB phase noise of typ. -128 dBc (at 1 GHz; 20 kHz carrier offset)
    • All important analog modulations with AM, FM/PM and pulse modulation supported
    • High output power of typ. up to +27 dBm

Automotive Radar Target Simulators

Application Notes

  • This White Paper provides a more detailed view on radar waveforms for Aerospace and Defence and commercial radar systems. Waveforms such as pulse and pulse-Doppler signal, continuous wave and frequency shift keying waveforms are described. It also shows continuous waveform trends designed for specific needs and application differences of continuous wave radar compared to pulse radar systems.

  • Frequency Modulated Continuous Wave (FMCW) radar signals are often used in short range surveillance, altimeters and automotive radars. To ensure proper functionality, signal quality measures such as frequency linearity are of great importance.

    This application note focuses on fully automated, fast and accurate measurements, of linear FMCW radar signals. It explains the basic signal processing, the impact on radar key performance indicators in case of linearity deviations and explains test and measurement of linear FMCW signals in detail.

    Measurement of an FMCW radar signal in the 77-81 GHz band with 500 MHz of measurement bandwidth is demonstrated.

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