Abstract
In order to simulate realistic traffic scenarios, a radar target simulator must be able to generate multiple radar targets with different directions of arrival. The presented concept is able to generate an arbitrary amount of targets with individual directions of arrival for the radar under test. By measuring the radar channel, the novel approach enables target simulators to simulate arbitrary directions of arrival, while minimizing the required hardware. The optimum setup is derived for radars with a uniform linear receive antenna array. The compensation of placement errors for automotive chirp-sequence frequency modulated continuous wave radars is demonstrated. Finally, the calibration for the setup is provided, and the performance of the presented approach is validated.
Highlights
The usage of radar sensors in automotive applications is rapidly increasing [1]
The target elements (TE) are placed, the calibration is performed, and afterwards, a target with a direction of arrival (DoA) θsim is simulated via the TEs
The position of the simulated target is estimated via standard radar signal processing, comprising of constant false alarm rate (CFAR), peak search, and a Bartlett beamformer for the estimated DoA θest
Summary
The usage of radar sensors in automotive applications is rapidly increasing [1]. The robustness offered by radar detection makes the employment for advanced driver assistance systems (ADAS) highly attractive [2], [3]. A test environment that is able to generate multiple targets with different DoAs for an automotive radar sensor was presented in [11] and [12]. The generation of the angular information relies on a mechanical approach that moves the target simulator antenna to the position of the intended DoA. This means the approach enables the target simulator to generate as many targets with an individual DoA at the same time, as there are movable antennas Another approach was presented in [13], where low-cost modulated reflectors have a fixed position and simulate a fixed DoA.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
