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由于雷达目标极化特征和极化识别的诱人前景，８０年代中后期有关极化的精确测量技术成了国际学术界的热门话题。极化测量的主要困难在于：测量系统的极化纯度有限，由极化耦合引起的测量误差太大。本文介绍了一种目标极化散射矩阵精确测量技术与测量系统。通过采用全极化校准技术将测量系统的极化纯度提高两个量级以上，并在实验室内建立了实用的目标极化散射矩阵精确测量系统。
Due to the attractive characteristics of radar target polarization and the attractive prospect of polarization identification, the accurate measurement of polarization in the mid-1980s has become a hot topic in the international academic community. The main difficulties of polarization measurement are: the measurement system has a limited degree of polarization and the measurement error caused by polarization coupling is too large. This paper introduces a precise measurement technique and measurement system of target polarization scattering matrix. By adopting the all-polarization calibration technique, the polarization purity of the measurement system is increased by more than two orders of magnitude, and a practical measurement system of the target polarization scattering matrix is established in the laboratory.