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短基线微波干涉仪测量方向余弦的几何误差是一种近似误差。当目标在无限远处时,不存在这种误差。方向余弦的精确表示式与目标距离有关。在有测距能力的干涉仪定位系统中可用距离信息进行几何误差修正。本文着重讨论无测距离能力的双站干涉仪方向余弦的几何误差修正问题,文中讨论了双站干涉仪方向余弦几何误差修正的方法及精度估算,计算实例表明这种方法是有效的。
Short baseline microwave interferometer to measure the geometric cosine error is an approximate error. When the target is at infinity, there is no such error. The exact representation of the direction cosine depends on the target distance. Distance measurement can be used to correct geometric errors in interferometric positioning system with distance measuring capability. This paper focuses on the geometric error correction of the cosine of the bistatic interferometer with no distance capability. In this paper, the method and precision estimation of the cosine error of the directional cosine of the bistatic interferometer is discussed. The calculation example shows that this method is effective.