Blind Speed Side Lobe Suppression in Radon-Fourier Transform Based on Radar Pulse Recurrence Interval Design
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摘要: 盲速旁瓣可能增加长时间相干积累方法Radon-Fourier变换(RFT)的虚警概率并影响检测性能。为此，该文提出一种基于脉冲重复间隔(PRI)设计的盲速旁瓣抑制方法。利用不同PRI盲速旁瓣位置及速度分辨率的关系，给出了PRI具体设计方法。然后，联合处理两个相邻相参处理间隔(CPI)的RFT输出结果，在不降低RFT积累性能的情况下实现盲速旁瓣(BSSL)的抑制。最后，数值实验结果验证了该文所提方法的有效性。
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关键词:
- 目标检测 /
- Radon-Fourier变换 /
- 长时间相参积累 /
- 盲速旁瓣抑制 /
- 脉冲重复间隔设计
Abstract: The Blind Speed Side Lobes (BSSL) may increase the false alarm probability and deteriorate the detection performance of the long time coherent integration method, namely, the Radon-Fourier Transform (RFT). A novel BSSL suppression method based on the design of radar Pulse Recurrence Interval (PRI) is proposed. First, detailed PRI design method is given based on the BSSL locations and velocity resolutions. Then, by jointly processing the RFT outputs of two adjacent Coherent Processing Inlervals (CPIs), the BSSL suppression can be realized without deteriorating the integration performance of the RFT. Finally, detailed numerical experiments are provided to demonstrate the effectiveness of the proposed method. -
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