no code implementations • 14 Mar 2024 • Xinnan Zhang, Yuanbo Cheng, Xiaolei Shang, Jun Liu
The Cram{\'e}r-Rao bound (CRB) with the antenna-varying threshold is obtained.
no code implementations • 15 Jun 2023 • Xiaolei Shang, Ronghao Lin, Yuanbo Cheng
We formulate the angle-Doppler imaging problem as a sparse parameter estimation problem, and a computationally efficient majorization-minimization (MM) based estimator of sparse parameters, referred to as mLIKES, is devised for accurate angle-Doppler imaging.
no code implementations • 15 Jun 2023 • Xiaolei Shang, Yuanbo Cheng
We consider code optimization and angle-Doppler imaging for slow-time code division multiplexing (ST-CDM) linear frequency-modulated continuous-wave (LFMCW) multiple-input multiple-output (MIMO) radar systems.
no code implementations • 27 Mar 2023 • Xinnan Zhang, Yuanbo Cheng, Xiaolei Shang, Jun Liu
Simulation results show the validity of the asymptotic CRB and better performance under the optimal mixed-precision arrangement.
no code implementations • 27 Sep 2022 • Petre Stoica, Xiaolei Shang, Yuanbo Cheng
Moreover, the CRB is an achievable limit, for instance it is asymptotically attained by the maximum likelihood estimator (under regularity conditions), and thus it is a useful benchmark to which the accuracy of any parameter estimator can and should be compared.
no code implementations • 31 Mar 2021 • Xiaolei Shang, Jian Li, Petre Stoica
The recently proposed hyperparameter-free (and hence user friendly) weighted SPICE algorithms, including SPICE, LIKES, SLIM and IAA, achieve excellent parameter estimation performance for data sampled with high precision.