TY - GEN
T1 - Misspecified Cramér-Rao Bound for Terahertz Automotive Radar Range Estimation
AU - Levy-Israel, Moshe
AU - Tabrikian, Joseph
AU - Bilik, Igal
N1 - Publisher Copyright:
© 2023 European Signal Processing Conference, EUSIPCO. All rights reserved.
PY - 2023/1/1
Y1 - 2023/1/1
N2 - High-resolution information about a host vehicle's surroundings is essential for autonomous driving and advanced driver assistance systems (ADAS). This requires radar systems with high-resolution range, Doppler, azimuth, and elevation capabilities. Terahertz (THz) frequency band radar systems could provide nearly-optical resolution while compact and lightweight. However, frequency-selective range-dependent attenuation of the THz propagation channel challenges the implementation of automotive radars at this frequency band. Estimating the parameters of the THz channel can be computationally complex. Therefore, a flat channel model is conventionally considered for the THz radar range estimator. This work investigates the influence of this assumption on the THz radar range performance estimation via the misspecified Cramér-Rao bound (MCRB). The ability of the proposed approach to evaluate the influence of the frequency-selective misspecification on the radar range estimation accuracy and detection range is evaluated via simulations.
AB - High-resolution information about a host vehicle's surroundings is essential for autonomous driving and advanced driver assistance systems (ADAS). This requires radar systems with high-resolution range, Doppler, azimuth, and elevation capabilities. Terahertz (THz) frequency band radar systems could provide nearly-optical resolution while compact and lightweight. However, frequency-selective range-dependent attenuation of the THz propagation channel challenges the implementation of automotive radars at this frequency band. Estimating the parameters of the THz channel can be computationally complex. Therefore, a flat channel model is conventionally considered for the THz radar range estimator. This work investigates the influence of this assumption on the THz radar range performance estimation via the misspecified Cramér-Rao bound (MCRB). The ability of the proposed approach to evaluate the influence of the frequency-selective misspecification on the radar range estimation accuracy and detection range is evaluated via simulations.
KW - Automotive radar
KW - MCRB
KW - THz radar
KW - frequency-selective propagation
KW - range estimation
UR - http://www.scopus.com/inward/record.url?scp=85178365450&partnerID=8YFLogxK
U2 - 10.23919/EUSIPCO58844.2023.10289886
DO - 10.23919/EUSIPCO58844.2023.10289886
M3 - Conference contribution
AN - SCOPUS:85178365450
T3 - European Signal Processing Conference
SP - 815
EP - 819
BT - 31st European Signal Processing Conference, EUSIPCO 2023 - Proceedings
PB - European Signal Processing Conference, EUSIPCO
T2 - 31st European Signal Processing Conference, EUSIPCO 2023
Y2 - 4 September 2023 through 8 September 2023
ER -