一种搜索鲁棒的中国余数定理的多基线相位解缠绕技术

A searched-form robust Chinese remainder theorem based multibaseline phase unwrapping algorithm

多基线相位解缠绕的性能深受噪声水平制约,比如基于经典中国余数定理的相位解缠方法,由于其糟糕的抗噪声性能,限制了其在实际中的广泛运用。基于搜索鲁棒的余数定理,通过引入公因子,构建新的同余方程组,提出了一种搜索鲁棒的中国余数定理的相位解缠方法。仿真实验验证了该方法的有效性,并表明选择合理的公因子可以有效提高算法的抗噪声性能。

The performance of the multibaseline phase unwrapping is directly related to noise level.For instance,the presence of phase noise makes the phase unwrapping method based on the classical Chinese remainder theorem unrobust enough and inapplicable in practical cases.So a method based on a SR-CRT(searched-form robust Chinese remainder theorem)was presented,and the common factor was carried out to build the new system of simultaneous congruence in the method.Theoretical analysis and experimental results prove the effectiveness of the SR-CRT method and demonstrate that selecting reasonable common factor can improve the noise robustness of the SR-CRT method.