Results 1 to 10 of about 333,575 (254)

Signal recognition and background suppression by matched filters and neural networks for Tunka-Rex [PDF]

EPJ Web of Conferences, 2019
The Tunka Radio Extension (Tunka-Rex) is a digital antenna array, which measures radio emission of the cosmic-ray air-showers in the frequency band of 30-80 MHz. Tunka-Rex is co-located with the TAIGA experiment in Siberia and consists of 63 antennas, 57
Shipilov D., Bezyazeekov P.A., Budnev N.M., Chernykh D., Fedorov O., Gress O.A., Haungs A., Hiller R., Huege T., Kazarina Y., Kleifges M., Korosteleva E.E., Kostunin D., Kuzmichev L.A., Lenok V., Lubsandorzhiev N., Marshalkina T., Monkhoev R., Osipova E., Pakhorukov A., Pankov L., Prosin V.V., Schröder F.G., Zagorodnikov A.   +23 more
doaj   +3 more sources

High SNR Φ-OTDR with Multi-Transverse Modes Heterodyne Matched-Filtering Technology [PDF]

Sensors, 2021
Phase-sensitive optical time domain reflectometer (Φ-OTDR) has attracted attention in scientific research and industry because of its distributed dynamic linear response to external disturbances.
Yifan Liu, Junqi Yang, Bingyan Wu, Bin Lu, Luwei Shuai, Zhaoyong Wang, Lei Ye, Kang Ying, Qing Ye, Ronghui Qu, Haiwen Cai   +10 more
doaj   +2 more sources

Beamforming of Joint Polarization-Space Matched Filtering for Conformal Array [PDF]

The Scientific World Journal, 2013
Due to the polarization mismatch of the antenna, the received signal suffers from energy loss. The conventional beamforming algorithms could not be applied to the conformal array because of the varying curvature.
Lutao Liu, Yilin Jiang, Liangtian Wan, Zuoxi Tian   +3 more
doaj   +2 more sources

Matched Filtering for MIMO Coherent Optical Communications with Mode-Dependent Loss Channels [PDF]

Sensors, 2022
The use of digital signal processors (DSP) to equalize coherent optical communication systems based on spatial division multiplexing (SDM) techniques is widespread in current optical receivers.
Luis M. Torres, Francisco J. Cañete, Luis Díez   +2 more
doaj   +2 more sources

Novel use of matched filtering for synaptic event detection and extraction. [PDF]

PLoS ONE, 2010
Efficient and dependable methods for detection and measurement of synaptic events are important for studies of synaptic physiology and neuronal circuit connectivity. As the published methods with detection algorithms based upon amplitude thresholding and
Yulin Shi, Zoran Nenadic, Xiangmin Xu
doaj   +2 more sources

Method for Suppressing Non-Stationary Interference in the Main-Lobe Based on a Multi-Polarized Array [PDF]

Sensors
To suppress non-stationary main-lobe interference, we utilized the waveform information of the transmitted signal and proposed an interference suppression method based on a multi-polarized array without the need for calculating the target parameters ...
Jie Wang, Shujuan Ding, Na Wei, Jinzhi Bi, Rongqiu Zheng   +4 more
doaj   +2 more sources

Quantum algorithm for gravitational-wave matched filtering

Physical Review Research, 2022
Quantum computational devices currently under development have the potential to accelerate data analysis techniques beyond the ability of any classical algorithm.
Sijia Gao, Fergus Hayes, Sarah Croke, Chris Messenger, John Veitch   +4 more
doaj   +1 more source

A Waveform-Encoded SAR Implementation Using a Limited Number of Cyclically Shifted Chirps

Remote Sensing, 2021
Synthetic aperture radar (SAR) provides high-resolution images of the Earth’s surface irrespective of sunlight and weather conditions. In conventional spaceborne SAR, nadir echoes caused by the pulsed operation of SAR may significantly affect the SAR ...
Se-Yeon Jeon, Fabian Glatz, Michelangelo Villano   +2 more
doaj   +1 more source

Method of Range Ambiguity Suppression Combining Sparse Reconstruction and Matched Filtering

Leida xuebao, 2022
To a certain extent, SAR images are affected by range ambiguity due to antenna sidelobe characteristics and pulse operating system. The work of range ambiguity suppression focuses on SAR system design and signal processing.
Meng QI, Lijia HUANG, Xiaolan QIU, Wenyi ZHANG, Yuxin HU, Qingwei CHU   +5 more
doaj   +1 more source

Spatial and temporal control of the volcanic activities over the distribution of sediments in the Magadi basin, Kenya Rift

Scientific African, 2023
High-velocity layers in basins with significant sub-basalt coverage, such as the Magadi basin, can impede geophysical imaging of potential subsurface hydrocarbon deposits.
Abiud Masinde, Aaron Waswa, George Muia, Edmond Makhanu   +3 more
doaj   +1 more source