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- Title
Joint range and velocity estimation for orthogonal frequency division multiplexing‐based high‐speed integrated radar and communications system.
- Authors
Wang, Xiaojiang; Zhang, Zhenkai
- Abstract
The integrated radar and communications (IRC) waveform can simultaneously estimate the range and velocity of other targets while communicating with other facilities. In high‐speed scenarios, the IRC echo signal based on orthogonal frequency division multiplexing (OFDM) needs to consider the intra‐symbol and inter‐subcarrier Doppler effects. This paper first builds a receiving model of the integrated echo signal by including the intra‐symbol and inter‐subcarrier Doppler effects. On this basis, we propose a two‐step joint range and velocity estimation method, where rough estimation is performed by an improved estimating the signal parameters via the rotational invariance technique (ESPRIT), and a least‐square weighted (LSW) method is applied for fine estimation. The Cramer‐Rao lower bound (CRLB) of the receiving model is also provided, and the computational complexity of the proposed method is analyzed. Simulation results demonstrate the superiority of the proposed method.
- Subjects
DOPPLER effect; MIMO radar; TELECOMMUNICATION systems; ORTHOGONAL frequency division multiplexing; RADAR; VELOCITY
- Publication
IET Communications (Wiley-Blackwell), 2022, Vol 16, Issue 9, p1005
- ISSN
1751-8628
- Publication type
Article
- DOI
10.1049/cmu2.12403