一种引入速率量测的三维变结构多模型算法

A 3-D Variable Structure Multiple Model Algorithm Based on Velocity Measurements

为了解决舰艇火控系统对三维空间中作高速/机动飞行反舰导弹的跟踪问题,针对可以观测距变率和角变率的雷达观测系统,通过在变结构多模型算法(VSMM)中引入上述速率量测值,提出了一种引入速率量测的VSMM算法。通过将新提出的算法和传统算法在典型反舰导弹攻击航路下进行仿真实现,证实了速率量测的引入可显著改善VSMM算法的跟踪性能,并且可以提高对目标机动检测的稳定性,缩短检测延时,具有一定工程实践指导意义。

Aiming at the problem of warship fire control system tracking of anti-ship missile with high speed and maneuver,a new method for the variable structure multiple model（VSMM） algorithm using the radial velocity was presented for radar awareness system,which can detect target radial velocity and target angular velocity.A simulation about the Kalman filtering was put forward by this thesis and the traditional Kalman filtering in ideal anti-ship missile flight path was given.The simulation result shows that by introducing velocity,the capacity of VSMM algorithm and the stability of maneuver detection can be improved;the retardation time can be cut down.The new Kalman filtering has some value for project practice.