释义 |
- 极坐标:平面或三维空间中一个点的坐标,由该点到原点的距离和从x轴逆时针方向测量到连接该点与原点的线的角度组成。
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计算机科学技术 极坐标 To do this, firstly, select optimum matching-origin-pair in the polar coordinates, then the number of matching pairs can be acquired. 本算法能够减小指纹平移、旋转误差,在有噪声和形变情况下,先优选出极坐标原点对,进而求出匹配对的数目。
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电子、通信与自动控制技术 极坐标 This paper focuses on multi-path separation for a linear frequency modulated (LFM) signal based on fractional Fourier transform (FRFT). The method uses time-frequency clustering of the LFM signals by incorporating a 1-D neighborhood search algorithm based on polar coordinates. 该文针对线性调频雷达信号,利用分数阶Fourier变换(FRFT)的时频聚集特性,提出了基于极坐标的一维邻域搜索算法,从而实现线性调频多径信号的快速分离。
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