摘要
三轴跟瞄装置可以解决方位俯仰两轴跟瞄装置存在的盲区问题,能够实现全方位跟踪空间目标。然而三轴跟瞄装置测量值与空间位置多对一的特性决定了跟踪策略的多样性和系统引导的复杂性,传统的切换控制方法制约了三轴跟瞄装置跟瞄精度的进一步提高。通过详细分析三轴跟瞄装置运动过程,在给定当前位置角、探测器误差角的条件下,将求解三轴执行角增量的计算方法转化为求最优值问题。采用粒子群算法求得了不同初始条件下满足目标要求的角增量组合,分析比较了三轴跟瞄装置和方位俯仰两轴跟瞄装置跟瞄性能的差异,结果验证了三轴跟瞄装置运动过程分析方法以及用粒子群算法求解角增量组合的有效性。
Three-axis tracking equipment can solve the problem of blind region existing in azimuth -elevation tracking equipment. And it can track the target in whole-space. However, the relationship between measurement value and space position is many-to-one, which leads to the variety of the tracking strategy and the complexity of the pilot system. Existing switching strategy restricts the improvement of tracking precision of three-axis tracking equipment. If the current angles and the detecting errors are known, the solution of the angle increment can be transformed into a problem of optimization based on the movement analysis of three-axis tracking equipment. And the angle increment under different initial conditions can be solved using particle swarm optimization. The difference between three-axis tracking equipment and azimuth-elevation tracking equipment is analyzed. The validity of this tracking strategy and analytic method is validated by simulation results.
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
2009年第9期1841-1845,共5页
Chinese Journal of Scientific Instrument
关键词
粒子群算法
三轴
跟瞄装置
particle swarm optimization
three-axis
tracking equipment
