分别采用最小二乘复频域法和最小二乘复指数法对某轿车白车身进行了实验模态分析并对其结果进行比较和分析。
EMA on a car body-in-white (BIW) is conducted using both PolyMAX and least squares complex exponent method (LSCE) with their results compared and analyzed.
本文给出了复指数信号模型非线性最小二乘解的几何结构。
The geometric structure of nonlinear least squares solution for signals by complex exponents is offered in this paper.
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