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TOA Estimation with the IEEE 802.15.4a Standard
IEEE Transactions on Wireless Communications, 2010This paper discusses a ranging algorithm appropriate for impulse radio ultra-wideband signals compliant with the IEEE 802.15.4a standard. Three steps are indicated to locate the so-called ranging marker in the received signal. The first is to find the highest peaks in the channel responses to the transmitted pulses. The second consists in measuring the
D'AMICO, ANTONIO ALBERTO +2 more
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A hybrid TDoA-ToA localization method
ICT 2013, 2013One of the main advantages when comparing time over signal strength localization methods, is that the former do not require the creation of fingerprint databases. On the other hand, the majority of time based methods require some sort of clock synchronization due to the drifting of the local clocks.
Amin Gholoobi, Stavros Stavrou
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TOA Based Joint Synchronization and Localization
2010 IEEE International Conference on Communications, 2010Time of arrival (TOA) based joint synchronization and localization is a very important research area for wireless ad hoc sensor network applications. In this paper we propose a computationally efficient algorithm. The proposed algorithm is based on the linearized equations from TOA measurements, and applies a weighted least square criterion that leads ...
Shouhong Zhu +2 more
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Scandinavian Journal of Haematology, 1969
Although the physico‐electronic principle on which detection of cells is based in the Toa counter differs from that used in the Coulter counter, results of erythrocyte counts made with the two counters show a similar degree of precision. The two counters are about equivalent in terms of reproducibility of leucocyte counts.
P. W. Helleman, Maria E. M. Geleynse
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Although the physico‐electronic principle on which detection of cells is based in the Toa counter differs from that used in the Coulter counter, results of erythrocyte counts made with the two counters show a similar degree of precision. The two counters are about equivalent in terms of reproducibility of leucocyte counts.
P. W. Helleman, Maria E. M. Geleynse
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Optimal estimation of TOA in the TDOA problem
2013 Australian Communications Theory Workshop (AusCTW), 2013In the time difference of arrival (TDOA) problem, the unknown location of an emitter is estimated using a set of TDOA estimates. In this paper, a closed-form solution for a nominal TOA in the TDOA problem is presented for the case of three or four receivers that under certain conditions results in location estimates that are optimal in the least-square
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TOA Error Modeling and Analysis
2018The design and performance estimation of indoor positioning systems is challenging as the rich multipath indoor radio propagation environment makes accurate range measurements difficult.
Ian Sharp, Kegen Yu
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Revista Literária do Corpo Discente da Universidade Federal de Minas Gerais, 1983
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TOA Localization with Polar Coordinates
2023 13th International Conference on Advanced Computer Information Technologies (ACIT), 2023openaire +1 more source
A UWB Pulse with Precursor for ToA Measurement
2023 13th International Conference on Indoor Positioning and Indoor Navigation (IPIN), 2023Chris Marshall +5 more
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