Compensation of Motion-Induced Phase Errors and Enhancement of Doppler Unambiguity in TDM–MIMO Systems by Model-Based Estimation
Compensation of Motion-Induced Phase Errors and Enhancement of Doppler Unambiguity in TDM–MIMO Systems by Model-Based Estimation
复制标题
通过基于模型的估计补偿运动引起的相位误差并增强 TDMâMIMO 系统中的多普勒明确度
DOI:
10.1109/lsens.2020.3020700
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Reiner Thom
中科院分区:
文献类型:
--
作者:
Stephan Häfner;Reiner Thom
Utilization of multiple input multiple output (MIMO) systems in radar and channel sounding has gained increased attention in recent years. Quite often, time-division multiplexing (TDM) is employed to realize orthogonal waveforms at the transmitter. Apart from its advantages, TDM has two severe drawbacks. First, motion-induced phase variations become indistinguishable from phase migration due to the signal's arrival direction. This is termed angle-Doppler coupling, which causes ambiguities in angle, and Doppler estimation. Second, the unambiguously resolvable Doppler, i.e., the Doppler bandwidth, is reduced. In this letter, a model-based estimation approach will be proposed, which compensates for angle-Doppler coupling, and restores the Doppler bandwidth. A data model for the MIMO observations is derived, which is exploited by a maximum likelihood estimator to infer angle, delay, and Doppler from the observations. The performance of the proposed approach will be testified by simulations.
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影响因子:
3.5
作者:
C. Vasanelli;Fabian Roos;Andre Durr;J. Schlichenmaier;Philipp Hugler;Benedikt Meinecke;Maximilian Steiner;C. Waldschmidt
通讯作者:
C. Waldschmidt
DOI:
--
发表时间:
2018
期刊:
German Microwave Conference
影响因子:
--
作者:
S. Häfner;André Dürr;R. Thomä;C. Waldschmidt;G. D. Galdo
通讯作者:
G. D. Galdo
DOI:
--
发表时间:
2018
期刊:
2018 IEEE MTT-S International Conference on Microwaves for Intelligent Mobility (ICMIM)
影响因子:
--
作者:
Fabian Roos;Jonathan Bechter;N. Appenrodt;J. Dickmann;C. Waldschmidt
通讯作者:
C. Waldschmidt
影响因子:
4.3
作者:
A. Dürr;D. Schwarz;S. Häfner;M. Geiger
通讯作者:
M. Geiger
DOI:
10.1109/radar.2014.7060251
发表时间:
2014-10
期刊:
2014 International Radar Conference
影响因子:
--
作者:
Hongbo Sun;F. Brigui;M. Lesturgie
通讯作者:
Hongbo Sun;F. Brigui;M. Lesturgie