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Global range alignment for ISAR

机译:ISAR的全球范围对齐

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摘要

A new technique is developed for range alignment in inverse synthetic aperture radar (ISAR) imaging. The shifts made to the echoes are modeled as a polynomial, and the coefficients of this polynomial are chosen to optimize a global quality measure of range alignment. This technique is robust against noise and target scintillation, and avoids error accumulation. In addition, the shift in the time domain is implemented by introducing a phase ramp in the frequency domain, which removes the limitation of integer steps.
机译:开发了一种新技术,用于反合成孔径雷达(ISAR)成像中的距离对准。对回波进行的偏移被建模为多项式,并且选择该多项式的系数以优化范围对准的整体质量度量。该技术对噪声和目标闪烁具有鲁棒性,并且避免了错误累积。另外,通过在频域中引入相位斜坡来实现时域中的移位,这消除了整数步长的限制。

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