极坐标系中航迹外推的数学模型及精度分析

• 作 者: 钱健民
• 出 处: 火控雷达技术
• 发表日期: 1986年02期
• 关键词: 极坐标系 边搜索边跟踪 精度分析 外推 雷达测量 雷达数据处理 量测方程 航迹 状态参量 线性方程组

一、引言现代战争和科学技术的飞速发展,对雷达系统提出了许多新的要求,其中之一就是在搜索过程中同时完成对多个目标的自动跟踪,即通常所说的边搜索边跟踪(TWS)功能,计算机在雷达数据处理中的应用,已经使 TWS 体制成为现实。要跟踪多批目标,就要对运动目标的位置、速度等状态参量作出估计,通常采用的方法就是大家熟知的卡尔曼(Kalman)滤波或较为简单的α-β滤波,它们都要求目标的运动方程和量测方程为线性方程组,但雷达测量得到的是目标的球坐标数据,而在球坐标系中,即使是作等

I. INTRODUCTION With the rapid development of modern warfare and science and technology, many new requirements have been put forward for the radar system. One of them is the automatic tracking of multiple targets simultaneously in the search process, that is, the so-called edge search and tracking TWS) function, the application of the computer in radar data processing, has made the TWS system a reality. To track multiple targets, state parameters such as position and velocity of the moving target should be estimated. Commonly used methods are well-known Kalman filtering or simpler α-β filtering, all of which require the movement of the target Equation and measurement equations for the linear equations, but the radar measurement is the goal of the ball coordinate data, and in the spherical coordinate system, even if