金的运作策略，基金经理在运作过程中以目标跟踪误差（ Target Tracking Error） 为约束条件，根据业已通过测试的预期收益、风险和交易成本的相关预测模型，
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动态滞后误差的大小不但与跟踪系统有关，还与目标运动特性有关。
The amount of the dynamic lag errors not only is concerned with the tracking system, but also concerned with the moving characteristics of target.
从系统的跟踪算法中导出目标跟踪系统误差分析模型。
The target tracking system errors analysis models are derived from the tracker algorithm.
基于误差预处理技术的纯方位目标跟踪方法，采用多项式分段拟合测量。
The tracking method of pure orientation target was based on error pretreatment, and adopted polynomial segmentation fitting to measure.
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