ID 原文 译文
56018 针对基于广播式自动相关监视(automatic dependent surveillance-broadcast,ADS-B)数据进行机场三维态势呈现的应用,研究了在态势显示的第一步,ADS-B数据精度不高、不平滑问题,预处理后数据可以用于后续插值生成高帧率的航迹数据。 Based on related automatic dependent surveillance (automatic dependent surveillance - broadcast, ads-b) three-dimensional situation presents the application of the data of airport, studied in the first step of situation display, ads-b data accuracy is not high, not smooth, after the pretreatment of data can be used to generate high frame rate of subsequent interpolation track data.
56019 交互式多模型卡尔曼滤波(interacting multiple model Kalman filter,IMMKF)算法可以较好地解决机场场面运动目标ADS-B轨迹数据的实时平滑问题。 Interactive multiple model Kalman filter (interacting multiple model Kalman filter, IMMKF) algorithm can well solve the airport scene ads-b track a moving target data real-time smoothing problem.
56020 首先,根据飞机的真实运动情况建立了飞机的匀加速运动、匀速转弯运动及匀速运动模型,然后利用卡尔曼滤波Singer模型与IMM相结合的IMMKF算法对场面飞机的ADS-B轨迹进行了跟踪滤波,达到目标轨迹光滑的效果。 First of all, according to the real aircraft movements uniformly accelerated motion of aircraft is established, and uniform turning motion and uniform motion model, then using kalman filter Singer model combined with IMM IMMKF algorithm on the scene of aircraft ads-b track tracking filter, the target trajectory smooth effect.
56021 实验结果表明,与多种经典的滤波方法相比,IMMKF方法在保证了光滑性的情况下跟踪失败概率低,可实时计算,精度能满足要求。 Experimental results show that compared with a variety of classic filtering methods, IMMKF method under the condition of ensure the smoothness of the track failure probability is low, can real-time computing, precision can meet the requirements.
56022 针对服务航天器超近程逼近目标的相对姿态轨道耦合控制问题,推导了耦合动力学模型并设计了相应控制律。 For service super close range approaching target spacecraft relative attitude track coupling control problem of coupling dynamic model was deduced and the corresponding control law is designed.
56023 通过引入描述相对运动构型变化的期望相对位置矢量和位置误差矢量,将相对轨道跟踪控制问题转化为调节器的设计问题。 By introducing describe the relative motion configuration change the expectations of the relative position vector and the position error vector, the relative orbit tracking control problem into the design of the controller. Is developed, with the consideration of docking mechanism installation location track coupling dynamics model of relative attitude.
56024 推导了考虑对接机构安装位置的相对姿态轨道耦合动力学模型。 By using lyapunov stability theory, designed the relative posture of the unknown bounded disturbance track coupling control law.
56025 利用李雅普诺夫稳定性理论,设计了考虑未知有界干扰的相对姿态轨道耦合控制律。考虑控制输入受限进行数学仿真,结果表明所设计的控制律是有效的,并具有较好的性能。 Considering the mathematical simulation of limited input, the result shows that the designed control law is effective, and has good performance.
56026 给出了一种交互多模型(interacting multiple model,IMM)算法中Markov转移概率矩阵在线修正的方法,并将平方根容积卡尔曼滤波器(square-root cubature Kalman filter,SRCKF)引入到IMM算法中,提出一种时变转移概率的机动目标跟踪IMM-SRCKF算法。 Presents an interacting multiple model (interacting multiple model, the IMM) algorithm in the Markov transition probability matrix online correction method, Kalman filter and square root volume (the square - root cubature Kalman filter, SRCKF) is introduced into the IMM algorithm, put forward a kind of time-varying transition probability of the IMM - SRCKF of maneuvering target tracking algorithm.
56027 该算法利用当前量测中包含的模式信息,对IMM算法中的转移概率矩阵进行实时递推估计,避免了常规IMM算法中转移概率先验确定的困难,提高了模型切换速度和跟踪精度;同时,SRCKF以目标状态协方差的平方根进行迭代更新,确保了滤波过程中协方差矩阵的对称性和半正定性,改善了数值精度和稳定性。 The algorithm using the current measurement information contained in the model, the transition probability matrix in IMM algorithm for real-time recursive estimate, avoiding the conventional transfer probability in the IMM algorithm is prior to determine difficulty, improves the model switching speed and tracking accuracy;At the same time, a target state SRCKF iterate the square root of the covariance update, ensure the symmetry of covariance matrix in the process of filtering and half are qualitative, to improve the numerical accuracy and stability.