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本文利用单根的束控线阵来构造一个虚拟近场校准基阵，使换能器能在它的近场直接测量辐射声场特性。通过利用改进的矩阵稳定技术，解决了在求解束控线阵的束控系数时最小二乘解的稳定性和实用性问题。借助计算机仿真，研究了特定线阵条件下，合成近场测量基阵（ Ｓ－ＮＦＣＡ）的近场空间的平面波均匀性与线阵间的间距、线阵的工作频率之间的关系。并以小球源为阵元合成一虚拟平面ＮＦＣＡ，用它对一平面喇叭换能器的近场测量得到远场指向性，并与远场实测结果比较，得到了相当吻合的结果。
In this paper, a single beam-controlled linear array is used to construct a virtual near-field calibration array so that the transducer can directly measure the radiation field characteristics in its near-field. By using the improved matrix stabilization technique, the stability and practicability of the least square solution to the beam control coefficients of the beam steering array are solved. With computer simulation, the relationship between the planar wave homogeneity of near-field space and the operating frequency of linear array is studied under the condition of specific linear array. Then, a virtual plane NFCA was synthesized by using the ball source as an array element. Far-field directivity was obtained by near-field measurement of a planar horn transducer. Compared with the measured results in the far field, the results were quite consistent.