Abstract: Considering the radar system that is affected by the RCS value computed in the target, the model of coordinate transformation matrix is constructed. The DLL is set up based on Visual C++ language, and with the information of the target that is deposited in it we analyze the relation between the target detection and the RCS Stat. Then the transformation of the ratio of signal and jam and the detection probability is analyzed. Results of the simulation show that this coordinate transformation matrix model can make the RCS value easy to compute, and enhance the detection probability of radar system, and even more convenient for carrying out by the language of computer.

Key words: coordinate transformation, RCS value, DLL, detection probability

摘要： 考虑RCS值对机载雷达作战效能的影响，建立目标与载机的坐标转换矩阵模型，利用Visual C++等面向对象语言形成坐标转换动态链接库，通过对库函数的调用得到机载雷达所需的目标状态信息，分析了目标检测与RCS统计模型关系。以信噪比和发现概率的变化进行定量分析。仿真结果表明此模型简化了RCS值的计算，能有效地提高机载雷达的发现概率，且便于计算机语言实现。

关键词: 坐标转换, RCS值, 动态链接库, 发现概率