The Range-angle Estimation of Target Based on Time-invariant and Spot Beam Optimization

Wei CHU; Yunqing LIU; Wenyug LIU; Xiaolong LI

doi:10.11999/JEIT210265

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Wei CHU, Yunqing LIU, Wenyug LIU, Xiaolong LI. The Range-angle Estimation of Target Based on Time-invariant and Spot Beam Optimization[J]. Journal of Electronics & Information Technology. doi: 10.11999/JEIT210265

Citation:

Wei CHU, Yunqing LIU, Wenyug LIU, Xiaolong LI. The Range-angle Estimation of Target Based on Time-invariant and Spot Beam Optimization[J]. Journal of Electronics & Information Technology. doi: 10.11999/JEIT210265

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The Range-angle Estimation of Target Based on Time-invariant and Spot Beam Optimization

doi: 10.11999/JEIT210265

School of Electronics and Information Engineering, Changchun University of Science and Technology, Changchun130022, China

Funds: The Science and Technology Department of Jilin Province (20190303080SF), The Natural Science Foundation of ChangChun University of Science and Technology (201915010011)

Received Date: 2021-04-02
Rev Recd Date: 2021-05-25

Available Online: 2021-06-04

Abstract

Abstract

The application of Frequency Diverse Array and Multiple Input Multiple Output (FDA-MIMO) radar to achieve range-angle estimation of target has attracted more and more attention. The FDA can simultaneously obtain the degree of freedom of transmitting beam pattern in angle and range. However, its performance is degraded due to the periodicity and time-varying of the beam pattern. Therefore, an improved Estimating Signal Parameter via Rotational Invariance Techniques (ESPRIT) algorithm to estimate the target’s parameters based on a new waveform synthesis model of the Time Modulation and Range Compensation FDA-MIMO (TMRC-FDA-MIMO) radar is proposed. Finally, the proposed method is compared with identical frequency increment FDA-MIMO radar system, logarithmically increased frequency offset FDA-MIMO radar system and MUltiple SIgnal Classification (MUSIC) algorithm through the Cramer Rao lower bound and root mean square error of range and angle estimation, and the excellent performance of the proposed method is verified.
- Multiple Input Multiple Output (MIMO),
- Frequency Diverse Array (FDA),
- Time-invariant,
- Spatial focusing,
- Cramér-Rao lower bound

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References(17)

References

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