Results 271 to 280 of about 891,103 (297)

Time difference of arrival dilution of precision and applications

IEEE Transactions on Signal Processing, 1999
Performance prediction for time difference of arrival (TDOA) systems that rely on standard covariance methods exhibit poor correlation with simulated results. A superior metric (TDOA dilution of precision (DOP)) is derived. DOP is familiar to Global Positioning System (GPS) users and, although the equations governing TDOA DOP are quite different ...
J.D. Bard, F.M. Ham
openaire   +1 more source

Joint estimation of time difference of arrival and frequency difference of arrival for cyclostationary signals under impulsive noise

Digital Signal Processing, 2015
The problem of jointly estimating time difference of arrival (TDOA) and frequency difference of arrival (FDOA) or Doppler has a variety of practical applications. The conventional cyclic ambiguity function and the fractional lower-order ambiguity function suffer performance degradation in the presence of non-Gaussian α-stable impulsive noise and ...
Yang Liu, Tianshuang Qiu, Jingchun Li
openaire   +1 more source

Hybrid Localization Based on Time of Arrival and Phase Difference of Arrival Fusion

2019 IEEE International Conference on Signal Processing, Communications and Computing (ICSPCC), 2019
To locate the underwater target moving in a large area with a short trajectory, it is necessary to guarantee the positioning accuracy across the whole area. In the paper, a hybrid distributed underwater acoustic positioning system is employed. A positioning method based on time of arrival (TOA) and phase difference of arrival (PDOA) fusion is proposed.
openaire   +1 more source

Bias free estimation of the variance of time of arrival differences

ICASSP '84. IEEE International Conference on Acoustics, Speech, and Signal Processing, 1985
In the frequency domain estimation of Time of Arrival differences, phase data of the cross-spectrum may show correlation between frequency bins due to either insufficient time-bandwidth product or the use of a nonrectangular window on the input signal samples.
openaire   +1 more source

Research on Multi-platform Time Difference of Arrival and Frequency Difference of Arrival Joint Location Technology

2021 IEEE 6th International Conference on Signal and Image Processing (ICSIP), 2021
Kai Wang, Zhanglong Chen, Qiufei Yan
openaire   +1 more source

Real-time time difference of arrival estimation for moving wideband sources

Journal of the Acoustical Society of America, 2016
The modified generalized cross-correlation method is used for finding the time difference of arrival (TDOA) and resolving the angle of arrival toward moving targets in real-time. It addresses the decorrelation due to differential Doppler effect leading to relative time companding (RTC) between sensors.
openaire   +1 more source

Breast Cancer Statistics, 2022

Ca-A Cancer Journal for Clinicians, 2022
Hyuna Sung, Kimberly D Miller, Rebecca L Siegel   +2 more
exaly  

Direction-of-Arrival and Time-Difference-of-Arrival Estimation

2008
openaire   +1 more source

Cancer statistics, 2011

Ca-A Cancer Journal for Clinicians, 2011
Otis Brawley
exaly  

Artificial intelligence in cancer imaging: Clinical challenges and applications

Ca-A Cancer Journal for Clinicians, 2019
Wenya Linda Bi, Ahmed Hosny, Matthew B Schabath   +2 more
exaly