参数辨识法对半实物仿真系统进行精度分析

仿真精度是国内外系统仿真工作者正在进行研究的课题。以现有的红外制导空间半实物仿真系统为对象进行精度分析，首先采用参数辨识法建立各仿真设备的精确数学模型，然后对一种具体产品的制导回路进行数学仿真，把数学仿真结果与各仿真设备模型加入后的数学仿真结果进行比较，定量地得出了各仿真设备影响的结果，最后，对各仿真设备影响的误差结果进行了置信度计算及分析。

Accuracy Analysis of HIL Simulation System via Parameter Identification

Simulation accuracy is a subject being investigated by the system simulation researchers in abroud and our country. The object of accuracy analysis in this paper is a infra-red guided missile HIL system with three-degree-of-freedom. The system equipment is modeled accuratety at first, and then a mathematical simulation of a concrete missile guidance loop is carried out. Comparing the results of mathematical simulation with that of adding the equipment mathematical models, the results of the effects of various simulation equipment are given quantatiuely. At last, the fidelity of these results are analyzed and calculated.