Two-Dimensional Arbitrary Angle of Arrival in Radar Target Simulation

Diewald, Axel; Nuß, Benjamin; Johannes, Galinsky,; Zwick, Thomas

doi:10.23919/irs54158.2022.9905069

Cited by 2 publications

(2 citation statements)

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“…This solution does not require moving mechanical parts, but requires a large amount of frontends for a high resolution DoA simulation. The last approach employs multiple stationary RTSs that simulate DoAs coherently in a network [5]- [7]. This allows to reduce the number of frontends without limiting the amount of simulatable individual DoAs at a time instance, but requires knowledge about the transmission channel between radar and RTS.…”

Section: Introductionmentioning

confidence: 99%

“…The transmission channel can be estimated with the radar under test (RuT). So far, approaches were presented where the number of RTS frontends is the same as the number of radar channels [5] or derived with the assumption of a uniform array with a Bartlett beamformer, for 1D-DoA [6] and 2D-DoA [7] simulation. In this article a general model and simulation scheme for the concept of coherent DoA simulation with arbitrary radar array configurations and beamformers is derived, in order to overcome the constraints imposed by previous publications.…”

Section: Introductionmentioning

confidence: 99%

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A Unified Model of Coherent Direction-of-Arrival Simulation for Radar Target Simulators

Schoeder¹,

Janoudi²,

Grebner³

et al. 2023

IEEE Trans. Aerosp. Electron. Syst.

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In order to simulate highly realistic scenarios for modern radar sensors, like traffic scenarios, radar target simulators require the capability to generate targets in all four radar dimensions, which are range, radial velocity, azimuth and elevation angle.To generate targets with angular information, coherent direction-ofarrival (DoA) simulation allows a highly accurate and flexible angular simulation, at a minimum of required hardware. In this article a unifying general model for coherent DoA simulation with channel knowledge for radar target simulators is derived. It comprises previous models. We present methods which allow the simulation of arbitrary and adjustable DoAs, without any constraints on the radar array geometry or the implemented beamformer. The proposed models and methods are analytically derived, analyzed by simulations and finally verified by measurements. Lastly, a measurement of a 2D-DoA simulation for a radar with twelve channels is conducted, in order to show the general applicability of the concept.

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Section: Introductionmentioning

confidence: 99%