CAJ | 학술논문

针对目标运动过程中有转弯机动等复杂运动模式的高速高机动目标，设计了自适应两层IMM跟踪算法。该算法内层由改进的机动目标当前统计模型构成，把目标速度方向角作为伪测量值进行滤波，实时获得目标的角速度和角加速度；外层模型由常速模型和曲线模型构成，把内层模型得到的切向加速度和转弯角速度作为曲线模型参数，利用IMM算法进行滤波。仿真结果表明，该算法对高速高机动目标具有较高的跟踪精度，算法实现简单，具有一定的实际应用价值。
침대목표운동과정중유전만궤동등복잡운동모식적고속고궤동목표，설계료자괄응량층IMM근종산법。해산법내층유개진적궤동목표당전통계모형구성，파목표속도방향각작위위측량치진행려파，실시획득목표적각속도화각가속도；외층모형유상속모형화곡선모형구성，파내층모형득도적절향가속도화전만각속도작위곡선모형삼수，이용IMM산법진행려파。방진결과표명，해산법대고속고궤동목표구유교고적근종정도，산법실현간단，구유일정적실제응용개치。
A two-layer Interactive Multiple Model(IMM)tracking algorithm is put forward for high speed and high maneu-vering target, which includes complex maneuvering modes, especially turn maneuvering. The inner layer is composed of modified current statistical model. Turn angular velocity and angular acceleration can be attained by filtering the heading angle of target. The outer layer is composed by constant model and curvilinear model. Cross-track acceleration and turn angular velocity of curvilinear model parameter could be adjusted adaptively from inner layer model. The outer layer models are filtered by IMM. The simulations show that the algorithm has better tracking precision for high speed and high maneu-vering target. The algorithm is easily implemented, and the algorithm has some practical application value.