研究目的
Investigating 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 due to antenna rotation. The algorithm's accuracy is verified through simulations, showing close alignment with theoretical bounds. Future work could extend the algorithm to multi-element arrays for enhanced resolution.
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 but differ in DOA. The computational complexity, although analyzed, may still pose challenges for real-time implementation in certain scenarios.
1：Experimental Design and Method Selection:
The study involves the development of an algorithm for target detection and parameter estimation using a two-element rotating antenna. The methodology includes signal processing techniques to compensate for the Doppler shift induced by antenna rotation.
2：Sample Selection and Data Sources:
The research utilizes simulated radar signals to represent targets with specific parameters (range, Doppler, and DOA).
3：List of Experimental Equipment and Materials:
A monostatic radar with a two-element rotating antenna, operating at a frequency of 2 GHz, with specified parameters such as PRI, PRF, and SNR.
4：Experimental Procedures and Operational Workflow:
The algorithm processes received pulses to detect targets and estimate their parameters. It involves FFT processing, Doppler compensation, and correlation with a reference barker sequence.
5：Data Analysis Methods:
The performance of the algorithm is analyzed through ROC curves and comparison with Cramer-Rao lower bounds for parameter estimation accuracy.
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