水池多目标多参数动态模拟系统设计与实现  

Design and Realization of Pool Multi—target multi—parameter Dynamic Simulation System

作　　者：屈力[1] 张群飞[1] 雷开卓[1] 

机构地区：[1]西北工业大学航海学院,陕西西安710072

出　　处：《计算机测量与控制》2008年第6期849-852,共4页Computer Measurement &Control

基　　金：国家"十五"预研项目(40107030102)。

摘　　要：多目标多参数动态模拟系统是动态多目标跟踪水池实验系统的关键部分,设计开发了能够同时模拟多目标的距离、速度、方位、强度参数的动态回波模拟系统;其中运用了D/A转换芯片实现信号的幅值的线性衰减,以实现大动态范围输出,模拟不同强度的目标;利用多片开关矩阵芯片组合的方式实现了8路信号在128路输出通道间的随意切换,以模拟目标方位的步进式变化;并进一步运用等效声学中心原理,提出利用相邻发射源幅度加权来模拟目标方位的连续变化的方法。Multi-target multi-parameter dynamic simulation system is a key component of dynamic multi-target tracking pool experimental system. The dynamic echo wave simulation system is designed, which can simulate the distances, velocities, directions, and intensities of multiple targets. The signal amplitude is attenuated accurately using a D/A conversion chip to obtain a large dynamic scale output in multi-target simulations with different intensities; The arbitrary switch between 8 input signals and 128 output channels is realized using combination of several analog switch array chips, which can simulate the direction of arrival （DOA） changes of targets. And a consecutive DOA simulation method for moving target is proposed using the amplitude weights of adjacent transmitters based on the principle of equivalent acoustic center.

关 键 词：多目标多参数 信号调理 幅度控制 通道切换 

分 类 号：TJ63[兵器科学与技术—武器系统与运用工程]