To improve the robustness of the Minimum Variance Distortionless Response (MVDR) beamforming to the array steering vector, a quadratic constraint method is proposed.

提出了一种基于阵列指向性约束的优化算法，以提高最小方差无畸变响应（MVDR）波束形成对方向矢量的稳健性。

Based on the geochemical data of the long regional profile in western Jiangxi and using quadratic arithmetic average and correlation analysis,orebearing features of strata are discussed in this paper.

本文以赣西地区区域长剖面的地球化学测量数据为基础，运用算术平均及相关分析方法，探讨了地层含矿性。