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Passive localization of an object from its emission can be based on time difference of arrival or phase shift measurements for different receiver groups in sensor arrays. The accuracy of the localization primarily depends on accurate time and/or phase measurements. The frequency of the emission and the number and arrangement of the receivers mainly effect the resolution of the emitter localization. In this paper optimal receiver positions for passive localization methods are proposed, resulting in a maximal resolution for the emitter location estimate. The optimization is done by analyzing the uncertainty of the emitted signal, including its frequency. The technique has been developed specifically for ultrasound signals obtained from omnidirectional transducers, although the results apply for other application using passive localization techniques. 相似文献
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I. Schmelzer 《Annalen der Physik》2011,523(7):576-579
Schulz claims to have constructed an actively local stochastic theory which violates Bell's inequality. This is false. 相似文献
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阐述了基于四元平面十字阵的声音目标被动定位的原理.利用目标与基阵平台分布在不同平面的特点,采用简单的平面阵实现目标的三维定位,简化了布阵的复杂性.针对基于四元平面十字阵的声音目标被动定位算法,分析了野值产生的原因,并研究了水平方位角、垂直俯仰角、时延估计误差度、目标距离、基阵尺寸等因素对野值产生的影响. 相似文献