Abstract
The paper presents a high-level system model of a W-band frequency-modulated continuous-wave radar which allows to determine and optimize main parameters of radar functional blocks at the system calculation and simulation stage. The structure of two-level model in Matlab and Simulink environment is considered and its features are described. Results of the radar simulation and justification of main functional blocks parameters are presented on the example of a W-band single-chip automotive radar.
Highlights
Automotive driver assistance systems (ADAS) are widely used in modern vehicles
Estimation of distance, velocity and angular position of different objects on the road underlies the work of any ADAS
Mixer output signal is digitized in the time tADC, Fast Fourier Transform (FFT) is performed to determine distance to the target in accordance with (2)
Summary
Estimation of distance, velocity and angular position of different objects on the road underlies the work of any ADAS. For this estimation different kind of systems are used: radars, lidars, hyperspectral imagers, optical cameras and ultrasonic sensors. Modern level of development of microelectronic industry allows to produce highly-integrated single-chip radars in W-range with reasonable cost which can be widely used in ADAS. First step in FMCW radar design is calculation and system-level simulation of the whole radar structure. At this step, main parameters of all radar functional blocks are determined. System simulation is a very important step in single-chip radar design. Matlab and Simulink provide a powerful platform for complex radar system simulation and calculation and can be used to perform it with minimum time spend [2]
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