CAJ | 학술논문

针对雷达系统中机动目标的跟踪问题，提出输入估计（input estimation，IE）与无偏量测转换（unbi-ased converted measurement，UCM）相融合的自适应算法。用无偏量测转换技术将观测量转换到直角坐标系，使得在极坐标系内应用 IE 成为可能；提出检测窗内加速度阶梯变化的假设并推导相关模型，使得单个输入估计器能够跟踪各种变化机动。仿真分析表明，算法与基于多滤波器并行工作的交互式多模型相比，跟踪精度相当，但运算量大大降低，因此适用于对性能和实时性要求较高的场合，有很好的应用前景。
침대뢰체계통중궤동목표적근종문제，제출수입고계（input estimation，IE）여무편량측전환（unbi-ased converted measurement，UCM）상융합적자괄응산법。용무편량측전환기술장관측량전환도직각좌표계，사득재겁좌표계내응용 IE 성위가능；제출검측창내가속도계제변화적가설병추도상관모형，사득단개수입고계기능구근종각충변화궤동。방진분석표명，산법여기우다려파기병행공작적교호식다모형상비，근종정도상당，단운산량대대강저，인차괄용우대성능화실시성요구교고적장합，유흔호적응용전경。
An overall adaptive tracking algorithm is proposed to estimate state variables of maneuvering target. Combining with unbiased converted measurement(UCM)technique to convert polar measurements to Cartesian coordi-nate,input estimation (IE)can be manipulated in polar coordinate.After assuming the acceleration within detection window is linear step distributed,the derivation of relevant model is made,so a single input estimator can track variable maneuver level.Simulation results for different target profiles are included.Compared with the interactive multiple model algorithm which is based on concurrent working of multiple filters,the scheme is comparable in terms of tracking performance while the computation complexity can be significantly reduced,so the proposed algorithm is suitable to ap-plication with high demand for performance and efficiency,which makes it a promising algorithm.