非视距

基于TDOA的一种简化的非视距误差抑制算法

A simple NLOS error mitigation algorithm based on TDOA mobile location

这种新的定位技术更好的避免了非视距的影响。

This new positioning method avoids the impact of NLOS better .

天线阵结构对非视距室内MIMO信道容量的影响

Antenna Array Structures Effect on Capacity of Indoor NLOS MIMO Channel

CDMA移动定位系统中非视距误差的消除算法

Non-line-of-sight error mitigation algorithm in CDMA mobile communication system

UWB室内非视距信道模型研究

A study of UWB indoor NLOS environments channel model

无线定位系统按照定位环境的不同可分为室外定位系统和室内定位系统，对定位精度最主要的干扰是非视距（NonLineofSight，NLOS）误差噪声干扰。

Non-line-of-sight ( NLOS ) error is the most common and also a major source of errors in wireless location system .

一种结合LOS／NLOS识别的非视距距离比例缩放定位算法

One NLOS-Range-Scaling Location Algorithm with LOS / NLOS Identification

非视距传播环境下对移动用户定位的AOA方法

An AOA location method for the mobile station in NLOS propagation environment

蜂窝网无线定位技术中非视距（NLOS）误差的鉴别及其抑制

Discriminating and restraining of NLOS error in wireless orientation technology of cellular network

克服非视距误差的新型定位算法是基于经典Chan和Taylor算法的协同定位改进的算法。

First overcome the orientation of non line-of-sight error algorithm is based on classical Chan and Taylor algorithm with the localization algorithm .

在非视距的室内环境中，要实现最大的MIMO容量增益，设计天线阵列时应该对天线间隔和阵列阵形综合考虑。

To obtain the MIMO capacity gains in indoor NLOS environment , antenna interval and antenna structure should be considered jointly when designing the antenna array .

减轻TOA和AOA定位系统非视距影响的方法

A New Method for Mitigating the Effect of NLOS Propagation in the TOA and AOA Hybrid Location System

基于SV／IEEE802.15.3a标准模型提出了一种非视距条件下的改进模型。

We propose an improved model for the UWB indoor NLOS channel based on SV / IEEE 802.15.3 a standard model .

非视距传播（NLOS）是蜂窝网定位误差的最主要来源。

The non-line-of-sight ( NLOS ) propagation is the main source of location error in cellular networks .

提出利用UWB数据传输速率高、多径分辨能力强以及非视距传输等优良特性来传递定位信息；

The locating information is transmitted in the UWB mode which has a high-speed transmission rate , a high multi-pathway resolving power , and a NLOS specialty ;

实验表明该算法在非视距（NLOS）环境下能够有效地改善定位精度。

And the results show that the cooperative location method can significantly improve the location accuracy under non-line of sight .

根据测量结果分析了传统模型在视距（LOS）和非视距（NLOS）情况下实测数据统计参数与模型参数的差异，并给出改进后的信道模型。

The difference between the measure parameters with the traditional model 's parameters in LOS and NLOS case is analyzed and the modified channel model is presented .

非视距（NLOS）误差是蜂窝网定位系统的主要误差源，直接影响基于蜂窝网络的定位系统的推广和应用。

Non-line-of-sight error is the key error in cellular mobile position system and directly restricts popularization and application of mobile position system .

由于反射、非视距等因素影响，利用RSSI测距的传统定位方法误差较大。

As the reflective , non-line and other factors , the localization error is greater in traditional positioning methods using RSSI ranging .

提出了三种改进的用卡尔曼滤波器消除到达时间（TimeOfArrival，TOA）测量值中非视距（Non-LineofSight，NLOS）误差的方法。

Three methods of mitigating the NLOS ( non-line of sight ) error in TOA ( time of arrival ) measurements were proposed , all of which were performed by Kalman filter .

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 .

仿真结果表明，这种通用信道模型能够准确的描述出宽带MIMO信道的视距（LoS）、非视距（NLoS）、室内外散射特征以及孔径效应。

Simulation results show that this model well describes the LoS , NLoS , indoor , and outdoor scattering properties of broadband MIMO channel as well as the keyhole effect .

然后通过使用单反射椭圆模型，提出了一种能够有效的抑制非视距传播（NLOS）干扰的定位算法。

And then using elliptical model SLR shoot , and puts forward a kind of inhibition of spread beyond ( NLOS ) interference location algorithm .

通过对该模型的传播时延特征进行分析，本文提出了一种基于圆散射模型的TOA重构方法来克服非视距对定位的影响。

By analyzing the time delay characteristic of this model , a new TOA reconstruction method based on the ring of scatterer model and its improvement is proposed .

主要思想是基于TDOA（到达时间差），考虑NLOS（非视距传播）影响的定位算法。

The main idea is based on a location algorithm of time difference of arrival ( TDOA ) and considering the influence of non-line-of-sight ( NLOS ) .

EPC网络利用RFID技术快速读写、非视距多目标识别的优势对物流网络中移动物品进行全程跟踪和追溯，实现物流供应链的可视化透明管理。

By taking advantage of RFID technology such as fast reading and writing , non-line-of-sight multi-target recognition , EPC network can track the moving objects in the logistics network in order to visualize the logistics process .

但是在非视距（NLOS）传播环境下Chan算法精度会受到较大的影响，从而影响到Taylor级数展开法的定位精度。

But Chan 's accuracy degrades greatly in the non line of sight ( NLOS ) propagation environment and then it will influ - ence the accuracy of Taylor series expansion algorithm .

然后深入研究了在非视距传播环境下基于TOA（TimeOfArrival，信号到达时间）的几何定位算法，提出了一种新的算法，把距离几何定位引入到基站选择中。

Then , a deep research on the geometric location algorithm is done based on TOA ( Time of Arrival , signal arrival time ) against non-line-of-sight propagation . Then a new algorithm is proposed which introduced geometric location method into base station selection .

基于移动通信环境中非视距NLOS（Non-LineofSight）传播时延扩展服从指数分布的特性，提出了提高波达时间TOA（TimeOfArrival）定位方法精度的一种数据处理方法。

Based on the statistical property of the non-line of sight ( NLOS ) propagation in the mobile communication environment , a data process method was presented to improve the position location accuracy of the time-of-arrival ( TOA ) .

在非视距传播（NLOS）环境中，到达时间差（TDOA）测量值受NLOS误差的影响而产生偏差[1]，使得Chan算法[2]的定位性能显著下降。

In non-line-of-sight propagation ( NLOS ) environment , the location performance of Chan ′ s algorithm is significantly degraded because the time difference of arrival ( TDOA ) measurement is biased by a NLOS error .