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Preprint
Transmit Precoder Design Approaches for Dual-Function Radar-Communication Systems
IEEE Transactions on Signal Processing for possible publication
17/Mar/2022
Abstract
As radio-frequency (RF) antenna, component and processing capabilities increase, the ability to perform multiple RF system functions from a common aperture is being realized. Conducting both radar and communications from the same system is potentially useful in vehicular, health monitoring, and surveillance settings. This paper considers multiple-input-multiple-output (MIMO) dual-function radar-communication (DFRC) systems in which the radar and communication modes use distinct baseband waveforms. A transmit precoder provides spatial multiplexing and power allocation among the radar and communication modes. Multiple precoder design approaches are introduced for a radar detection mode in which a total search volume is divided into dwells to be searched sequentially. The approaches are designed to enforce a reliance on radar waveforms for sensing purposes, yielding improved approximation of desired ambiguity functions over prior methods found in the literature. The methods are also shown via simulation to enable design flexibility, allowing for prioritization of either subsystem and specification of a desired level of radar or communication performance.
Details
- Title
- Transmit Precoder Design Approaches for Dual-Function Radar-Communication Systems
- Creators
- Jacob Pritzker - Massachusetts Institute of TechnologyJames Ward - Massachusetts Institute of TechnologyYonina C Eldar - 972WIS_INST___83
- Resource Type
- Preprint
- Publication Details
- IEEE Transactions on Signal Processing for possible publication; 17/Mar/2022
- Number of pages
- 15
- Language
- English
- Grant note
- The work of Jacob Pritzker and James Ward was supported in part by the Office of the Undersecretary of Defense for Research and Engineering (OUSD(R&E)) under Air Force Contract No. FA8702-15-D0001. Any opinions, findings, conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the OUSD(R&E). Parts of this work were funded by MIT.
- Record Identifier
- 993352831603596
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