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| Citation: | Zhou Baoliang, Zhou Dongming, Gao Hongwei, Yang Jie. Distributed Aperture Coherence-synthetic Radar Joint Antenna Gain Analysis[J]. Journal of Radars, 2017, 6(4): 332-339. doi: 10.12000/JR17055
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Distributed Aperture Coherence-synthetic Radar Joint Antenna Gain Analysis
DOI: 10.12000/JR17055
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Abstract
By the synthesis of multi-radar electromagnetic wave space energy, Distributed Aperture Coherence-synthetic Radar (DACR) achieves long-range power detection via multi-radar airspace expansion to realize high-precision target angle measurement. DACR has the advantages of strong survival ability, a high cost-effectiveness ratio, high angular accuracy, strong expandability, and easy realization. In this article, we analyze the joint antenna gain of a non-directional multi-point source and, given the theoretical derivation and simulation analysis, we establish a distributed-array-antenna geometric model, analyze the joint antenna pattern and gain, respectively, and determine that the joint antenna gain is approximately equal to the unit radar number and the unit radar gain product. Lastly, we perform a joint antenna gain simulation using HFSS software to further verify the joint antenna gain results.-
Keywords:
- Distributed,
- Coherence-synthetic,
- Joint antenna,
- Gain analysis
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References
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- Figure 1. Distributed aperture coherence-synthetic radar
- Figure 2. Multipoint source antenna joint gain simulation results
- Figure 3. Distributed array antenna geometric relationship
- Figure 4. Unit radar antenna pattern
- Figure 5. Antenna pattern comparison between distributed array and unit radar
- Figure 6. Radar prototype
- Figure 7. Joint antenna pattern (D1=1.229 m)
- Figure 8. Joint antenna pattern (D1=2.116 m)
- Figure 9. Two unit radar joint antenna gain
- Figure 10. Unit radar simulation model and antenna pattern
- Figure 11. Distributed Aperture Coherence-synthetic Radar simulation model
- Figure 12. Joint antenna pattern
- Figure 13. Joint antenna pattern
- Figure 14. Joint antenna gain statistics