Results 211 to 220 of about 19,236 (242)

Study on the Localization Method of Multi-Aperture Acoustic Array Based on TDOA

IEEE Sensors Journal, 2021
When the background noise is large or the sound source is far away from the microphone array, the localization accuracy of target sound sources will decrease dramatically.
Haitao Liu, Yonghua Chen, Yi Huang, Xianfu Cheng, Qian Xiao   +4 more
semanticscholar   +1 more source

Sensor Selection for TDOA-Based Source Localization Using Angle and Range Information

IEEE Transactions on Aerospace and Electronic Systems, 2021
Sensor selection for time-difference-of-arrival (TDOA)-based localization can be fulfilled by minimizing the Cramér–Rao lower bound (CRLB). With an identical range measurement noise variance for different sensors, the CRLB involves the angle information ...
Zichao Dai, Gang Wang, Hongyang Chen
semanticscholar   +1 more source

Combined Weighted Method for TDOA-Based Localization

IEEE Transactions on Instrumentation and Measurement, 2020
A novel and practical combined weighted (COM-W) method for target localization based on time difference of arrival (TDOA) is proposed in this paper. For 2-D situations with more than three nodes, the main idea of the proposed method is to obtain multiple
Shuai Cao, Xiang Chen, Xu Zhang, Xun Chen   +3 more
semanticscholar   +1 more source

TDOA Localization Scheme with NLOS Mitigation

2020 IEEE 92nd Vehicular Technology Conference (VTC2020-Fall), 2020
It is important to deploy the capability to locate a User Equipment (UE) using the Time-Difference-of-Arrival (TDOA) measurements. One of the sources of error is the presence of Non-Line-of-Sight (NLOS) errors in the localization problem, which leads to severe degradation in the localization performance using conventional localization algorithms such ...
Wuyang Jiang, Baogang Ding
openaire   +1 more source

Solution and Analysis of TDOA Localization of a Near or Distant Source in Closed Form

IEEE Transactions on Signal Processing, 2019
Point positioning and direction of arrival (DOA) localization require separate estimators, depending on whether the source is near or distant from the sensors. The use of modified polar representation (MPR) for the source location enables the integration
Yimao Sun, Dominic K. C. Ho, Q. Wan
semanticscholar   +1 more source

NLOS Mitigation Method for TDOA Measurement

2010 Sixth International Conference on Intelligent Information Hiding and Multimedia Signal Processing, 2010
In this paper, a non-line-of-sight (NLOS) error mitigation on time-difference-of-arrival (TDOA) measurements from pilot signals of a wireless communication network is proposed to solve the positioning and tracking issue involved in the environments where some base stations have NLOS errors.
Hao Jiang, Jie Xu, Zhen Li
openaire   +1 more source

Influence of Correction for Atmospheric Refraction in passive TDOA location on system TDOA error

2019 International Conference on Control, Automation and Information Sciences (ICCAIS), 2019
When radar measures the aerial target, the influence of atmospheric refraction will lead to its measurement error. First, based on the principle of correction for atmospheric refraction on single station system, an algorithm correction for atmospheric refraction of passive TDOA location system is described.
Liu Chang-jiang, Wang Chao-feng, LE Dan
openaire   +1 more source

Unsynchronized ultrasound system for TDOA localization

2014 International Conference on Indoor Positioning and Indoor Navigation (IPIN), 2014
Indoor localization based on time difference of arrival (TDOA) has been recently a promising field of study. We consider the previously unsolved problem of locating a moving target receiver by using unsynchronized stationary beacons without requirement of manual calibration. Thus, the received signals and their time of arrival (TOA) have to be assigned
Alexander Ens, Leonhard M. Reindl, Joan Bordoy, Johannes Wendeberg, Christian Schindelhauer   +4 more
openaire   +1 more source

Nearly Optimal Sensor Selection for TDOA-Based Source Localization in Wireless Sensor Networks

IEEE Transactions on Vehicular Technology, 2020
In a large-scale wireless sensor network, it is typically impossible to use all the sensors to localize a source due to the limited communication range and battery power of the sensor nodes, thereby a sensor selection procedure is required. In this paper,
Zichao Dai, Gang Wang, Xiaoping Jin, Xizhong Lou   +3 more
semanticscholar   +1 more source

TDOA-Based Acoustic Direction Finding

2018
This chapter focuses on estimating the azimuth and elevation angles of a sound emitter based on time-difference-of-arrival (TDOA) measurements using an array of acoustic sensors. The TDOA-based direction-finding problem is appropriate because in a range of scenarios the source only emits a transient signal and TDOA measurements provide a simple method ...
Xunxue Cui, Kegen Yu, Songsheng Lu
openaire   +1 more source