Joint Time-of-Arrival and Carrier-Phase Measurement and Tracking for Enhanced Loran Signals in Complex Interference Environments [PDF]
SensorsTo address carrier-phase loss of lock and long-term drift in frequency-offset estimation that may arise from time-of-arrival (TOA) measurements in enhanced Loran (eLoran) timing receivers under low signal-to-noise ratio (SNR) and moderate-to-high ...
Ziming Yuan +3 more
doaj +2 more sources
UWB pulse detection and TOA estimation using GLRT
EURASIP Journal on Advances in Signal Processing, 2017 In this paper, a novel statistical approach is presented for time-of-arrival (TOA) estimation based on first path (FP) pulse detection using a sub-Nyquist sampling ultra-wide band (UWB) receiver.
Yan Xie +3 more
doaj +3 more sources
Rapid enlargement of a tubo-ovarian abscess in a patient with cervical cancer and multiple uterine fibroids: A case report [PDF]
Case Reports in Women's HealthLocally advanced cervical cancer can be complicated by infections such as pyometra and tubo-ovarian abscess (TOA), although the pathogenesis of TOA is not fully understood.
Yuki Yamazawa +6 more
doaj +2 more sources
TOA Estimation of Indoor Localization by Wi-Fi Signal Based on Waveform Edge Detection [PDF]
Zhengzhou Daxue xuebao. Gongxue ban, 2022 To locate the target indoor precisely, it was important to investigate on the Wi-Fi based indoor localization parameter, namely, time of arrival(TOA).The main weakness of primary TOA estimation methods were estimation bias, complex algorithm，and lack of ...
MA Dongju, LI Min, ZHANG Duanjin
doaj +1 more source
Enhanced Positioning Techniques for Hybrid Wireless Networks [PDF]
, 2011 The objective of this paper is to propose a reliable and accurate positioning method, which provides location estimates for the mobile user in hybrid wireless network (IEEE802.11/WiFi, IEEE802.16/WiMAX and LTE technologies).
Zvikhachevskaya, Anna +4 more
core +4 more sources
Multilayer bonding of A1N30H foils to A1050 plates using cold spot forge welding
Heliyon, 2023 The cold spot forge-welding method, recently developed to achieve high-productivity and high-strength dissimilar material joining, was applied to multiple solid-phase joining of aluminum (Al) foils simulating tab-lead electrodes.
Hideki Yamagishi +3 more
doaj +1 more source
A Comparative study of TOA in diluents for Reactive Extraction of Succinic Acid [PDF]
, 2023 Succinic acid recovery from the aqueous phase is an intrinsic downstreaming process because of its numerous applications in the pharmaceutical and food industries.
Amruta, Mokashi +2 more
core +1 more source
Las finanzas públicas de Ecuador en el siglo XX [PDF]
, 2016 El Estado es un actor complejo que se moviliza según relaciones de poder y cuyos roles esenciales –en el plano económico- son la promoción económica y la generación del bienestar de una nación.
Castillo Luna, Toa Atenea
core +5 more sources
Underground target positioning based on differential error suppression optimization method
Gong-kuang zidonghua, 2020 In view of problem that positioning accuracy of positioning methods based on time ranging, namely arrival time, one-way ranging, two-way ranging and symmetrical double-sided two-way ranging (SDS-TWR) is disturbed by timing error factors such as clock ...
SONG Yunzhong, WANG Renhui
doaj +1 more source
The Climate Monitoring SAF Outgoing Longwave Radiation from AVHRR
Remote Sensing, 2020 Data from the Advanced Very High Resolution Radiometer (AVHRR) have been used to create several long-duration data records of geophysical variables describing the atmosphere and land and water surfaces.
Nicolas Clerbaux +6 more
doaj +1 more source