DBF同时多波束测角方法研究及工程实现

Study on DBF Simultaneous Multi-beam Angle Measuring Method and Its Implementation in Engineering

本文介绍了一种采用数字波束形成技术(DBF)实现同时多波束进而进行单脉冲测角的方法,给出了一种采用该方法的三坐标搜索雷达的系统组成。文中还详细讲述了相移DBF的数学模型、多波束单脉冲和差测角方法以及测角误差修正方法。仿真和实测结果表明,本文介绍的方法实现简单,测角精度等同于单脉冲测角,具有较高的实用价值。

A method of implementing simultaneous multi - beam by using digital beam forming （DBF） technology and further performing angle measurement by monopulse is presented; and a 3D search radar system composition by using this method is given. A mathematical model of phase shifting DBF, multibeam monopulse sum and difference angle measuring method and angle measuring error correcting method are depicted in detail. The simulation and practical measured results indicate that the presented method is simple to implement, and the angle measuring accuracy is equal to that of monopulse angle measuring, and it has high practical applicable value.