研究目的
To propose an algorithm for the detection and joint estimation of target parameters (range, Doppler, and direction of arrival) for a radar with a two-element rotating antenna, while compensating for the effects of antenna rotation.
研究成果
The proposed algorithm effectively detects targets and jointly estimates their range, Doppler, and DOA while compensating for the Doppler shift induced by antenna rotation. It shows good accuracy close to CRLB and is computationally efficient compared to conventional methods like MUSIC.
研究不足
The algorithm is limited to a two-element antenna array, which restricts the resolution for multiple targets if they share the same range or Doppler. The accuracy of Doppler estimation depends on the number of pulses stacked.
1：Experimental Design and Method Selection:
The algorithm involves processing received pulses from a two-element rotating antenna to detect targets and estimate their parameters. It includes compensation for Doppler shift due to antenna rotation.
2：Sample Selection and Data Sources:
The study uses simulated radar signals with specified parameters for targets and antenna rotation.
3：List of Experimental Equipment and Materials:
A monostatic radar with a two-element rotating antenna, operating at 2 GHz with specified PRI and PRF.
4：Experimental Procedures and Operational Workflow:
The algorithm processes stacked pulses, performs FFT for Doppler estimation, compensates for antenna rotation Doppler, and correlates with a reference barker sequence for range estimation. DOA is estimated using phase difference method.
5：Data Analysis Methods:
Performance is analyzed using ROC curves and compared with CRLB for Doppler, range, and DOA estimation.
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