节点精确定位面临的一个主要问题是信号的非视距传播。
A major problem in Node precise positioning is the non-line of sight signal transmission.
因此，对于对准精度要求并不苛刻的非视距紫外光通信而言，此算法是可行的。
This algorithm, therefore, is feasible for the ultraviolet communication which does not need rigorous pointing accuracy.
在无线传感器网络定位中，节点精确定位面临的一个主要问题是信号的非视距传播，非视距误差是节点定位误差的主要来源。
A key obstacle to high accuracy location is the Non Line of Sight (NLOS) transmission of signal in wireless sensor network node localization. NLOS error is the main source of location error.
但当我们的重心越来越倾向于非视距内的精确打击时，我们退化到了试图去复制空军已经具有的能力的地步。
When we gravitate more and more to non-line-of-sight precision engagement, however, we degenerate to trying to duplicate what the Air Force can already do.
基于射线寻迹的原理，提出了一种对被动声源进行非视距定位的方法。
A new method of NLOS acoustic passive location based on ray tracing is presented.
本文对非视距环境下的定位技术进行了深入研究，提出了两种非视距误差消除的方案。
We made an intensive study aiming at location technique in NLOS environment and proposed two NLOS error mitigation schemes.
针对非视距环境下多站定位方法需要资源量大、成本高且定位精度受非视距传播影响大等问题，本文提出了单站定位的伪目标动态可行域约束法。
A location method aiming at suppressing NLOS errors in cellular networks using single observer is proposed, which is named by pseudo-target dynamic feasible region constraint method.
距离测量误差包含测量噪声和非视距误差两部分，其中非视距误差是位置估计的主要误差来源。
The distance measurement errors include errors of measuring noise and non-line of sight, of which NLOS error is the main source of error in location estimation.
且该定位方法不依赖于特定的NLOS误差分布，也无需视距（LOS）和非视距识别。
Moreover, this location method does not depend on a particular distribution of the NLOS error and does not need line-of-sight (LOS) or NLOS identification.
且该定位方法不依赖于特定的NLOS误差分布，也无需视距（LOS）和非视距识别。
Moreover, this location method does not depend on a particular distribution of the NLOS error and does not need line-of-sight (LOS) or NLOS identification.
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