Based on the computation of complex targets RCS in optical region, methods of space objects wideband radar signature simulation, including HRR and ISAR image, are studied in this paper.

在光学区复杂目标RCS特征信号计算基础上，重点研究了空间目标宽带雷达特征信号包括高分辨一维距离像和二维isar图像仿真建模方法。

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Traditional boundary element methods with a full matrix equation for acoustic problems, have been met by a challenge in large scale scientific computation and numerical simulation in engineering.

文章提出将子波分析用于求解声学中的边界积分方程，能提高现有边界元方法解决工程问题的能力。

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Simulation results with factual industrial data demonstrate that the two methods are both fast in computation and accurate in prediction, so they are suitable to practical application.

通过实际工业数据仿真表明，这两种方法均具有计算速度快、模型精度高的特点，适合实际工程应用的需求。

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