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| 交叉定位模糊区的精确几何分析 | |
| 引用本文： | 王洪迅,弥小溪,皇甫惠栋,王星,王超. 交叉定位模糊区的精确几何分析[J]. 电光与控制, 2012, 19(3): 17-20 |
| 作者姓名： | 王洪迅 弥小溪 皇甫惠栋 王星 王超 |
| 作者单位： | 王洪迅:空军工程大学工程学院，西安710038 弥小溪:中国人民解放军93802部队,陕西 临潼712200 皇甫惠栋:中国人民解放军63655部队，乌鲁木齐830000 王星:空军工程大学工程学院，西安710038 王超:空军工程大学工程学院，西安710038 |
| 基金项目： | 国家“八六三”计划基金资助项目(2010AA80910514C) |
| 摘 要： | 针对近似几何方式无法准确衡量交叉定位误差的问题,研究了交叉定位模糊区与目标方位的关系。基于精确几何法展开分析,通过对模糊区与目标几何关系的研究,数学推导得出模糊区的完整数学表达,描述了模糊区面积的变化规律。模糊区面积的最小值出现在两个测向站附近,测向交叉点(θ1=π/6,θ2=5π/6)的模糊区面积是局部极值,并与近似几何方式的结论进行了对比,讨论了两者的适用范围。在特定条件下,近似几何分析可以代替精确几何分析。通过仿真验证了相关结论的合理性,从而可实现定位策略的优化。 |
| 关 键 词： | 无源定位 交叉定位 模糊区 几何法 误差分析 |
| 收稿时间： | 2011-04-09 |
Precise Geometrical Analysis of Ambiguous Area in Beam-Crossing Locating |
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| WANG Hongxun,MI Xiaoxi,HUANGFU Huidong,WANG Xing,WANG Chao. Precise Geometrical Analysis of Ambiguous Area in Beam-Crossing Locating[J]. Electronics Optics & Control, 2012, 19(3): 17-20 | |
| Authors: | WANG Hongxun MI Xiaoxi HUANGFU Huidong WANG Xing WANG Chao |
| Affiliation: | 1(1.Engineering Institute,Air Force Engineering University,Xi’an 710038,China; 2.No.93802 Unit of PLA,Lintong 712200,China;3.No.63655 Unit of PLA,Urumchi 830000,China) |
| Abstract: | Considering that the error of beam-crossing locating couldn't be estimated precisely by approximate method,we studied the ambiguous-area in beam-crossing locating.By means of exact geometrical method,the relationship between the ambiguous-area and target bearing was studied.The complete mathematical expression of ambiguous-area was obtained after deductions,and the changing law of ambiguous-area was described.The minimum value of ambiguous-area was at the round of the measuring nodes.The crossing(θ1=π/6，θ2=5π/6) was a local extremum.The result was compared with that of the approximate method.The scope of application of the two methods was discussed.Under special conditions,approximate geometric analysis can be used in stead of the precise geometric analysis.Rationality of the conclusions was validated by simulation. |
| Keywords: | passive locating beam-crossing locating ambiguous-area geometrical method error analysis |
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