无线电脉冲引信海面回波建模及仿真

无线电脉冲引信海面回波建模及仿真是根据无线电脉冲引信的探测特点和海面物理反射特性进行的建模仿真。根据无线电脉冲引信采样量化间隔,划分海面有效照射区域的等距离等值线,并由导弹飞行姿态和引信天线波束宽度确定海面有效照射区的等视线角等值线。再根据等距离等值线和等视线角等值线的交点,计算天线主波束照射面积和天线副瓣照射面积的合成功率,以此得到一个表示海面散射特性的冲击函数,用此函数和输入脉冲信号卷积得到无线电脉冲引信海面回波信号的数学模型,从而为仿真研究脉冲引信低空工作性能提供必须的仿真基础。

The Simulation and Modeling of Sea Clutter Received by the Radio Pulse Fuze

The simulation and modeling of sea clutter received by the radio pulse fuze is implemented according to the detection characteristic of the radio pulse fuze and the sea physical scatter characteristic.On the basis of the A/D sampling interval of the radio pulse fuze video channel can attain the range isoline of the sea efficient irradiation region,as well as,on the basis of the missile flight pose and the fuze antenna irradiation wave width can attain the angle isoline of sign of line.Subsequently,calculate the synthetical power of the whole antenna irradiation region in order to attain the impluse function of the sea scatter characteristic.Finally,convolve the impluse function and the input pulse to attain the sea clutter physical model of the radio pulse fuze.So as to provide the necessary foundation for the development research of the pulse fuze in the low sky.