CAJ | 학술논문

研究了海杂波的拟合方法。针对实测海杂波的概率密度函数（PDF）存在严重的“拖尾”现象，提出了修正的最小均方误差（MMSD）拟合检验方法。首先进行实测数据的参数估计，然后通过计算机仿真对传统的数据拟合方法和修正的最小均方误差（MMSD）拟合检验方法进行比较。结果表明：K分布与此次实测数据吻合度最好。这对海面目标检测有实际重大意义。
연구료해잡파적의합방법。침대실측해잡파적개솔밀도함수（PDF）존재엄중적“타미”현상，제출료수정적최소균방오차（MMSD）의합검험방법。수선진행실측수거적삼수고계，연후통과계산궤방진대전통적수거의합방법화수정적최소균방오차（MMSD）의합검험방법진행비교。결과표명：K분포여차차실측수거문합도최호。저대해면목표검측유실제중대의의。
This article studies the fitting methods of measured sea clutter data. In view of the "tail" phenomenon exist- ing in the PDF of measured sea clutter, the article presents the modified fit test methods for the Minimum Mean - Square Error. The article firstly estimates parameters of the common - used models of sea clutter by the measured data, and then by contrasting the theoretical curve and histogram of the measured data, it comes to the conclusion that the K - distribu- tion is in best agreement with the experimental data. The study is essential to target detection in the sea surface.