Results 31 to 40 of about 1,693,030 (143)

Photonics-Assisted Multi-Band Microwave Receiver Based on Spectrum Analysis and Coherent Channelization

Frontiers in Physics, 2020
Due to the limitation of analog-to-digital/digital-to-analog converters, photonics-assisted channelized receivers are thought to be a promising approach to receiving wideband microwave signals.
Huan Huang, Chongfu Zhang, Chongfu Zhang, Wei Zheng, Yong Chen, Haifeng Yang, Zichuan Yi, Feng Chi, Kun Qiu   +8 more
doaj   +1 more source

DOA Finding with Support Vector Regression Based Forward–Backward Linear Prediction

Sensors, 2017
Direction-of-arrival (DOA) estimation has drawn considerable attention in array signal processing, particularly with coherent signals and a limited number of snapshots.
Jingjing Pan, Yide Wang, Cédric Le Bastard, Tianzhen Wang   +3 more
doaj   +1 more source

Spatially Smoothed TF-Root-MUSIC for DOA Estimation of Coherent and Non-Stationary Sources Under Noisy Conditions

IEEE Access, 2021
This paper proposes a method for efficient Direction-of-Arrival (DOA) estimation of coherent and non-stationary sources under adverse noise conditions.
Ruslan Zhagypar, Kalamkas Zhagyparova, Muhammad Tahir Akhtar   +2 more
doaj   +1 more source

Self-coherent receiver for PolMUX coherent signals

, 2022
S.2801-2803A compact polarization-diversity self-coherent receiver with reduced complexity is proposed. Requirements on input polarization tracking is relaxed by a variant CMA equalizer.
Lauermann, M., Worms, K., Winter, M., Leuthold, J., Schmidt-Langhorst, C., Li, J., Koos, C., Hillerkuss, D., Freude, W., Schmogrow, R., Schubert, C.   +10 more
core   +1 more source

Enhanced Coprime Array Structure and DOA Estimation Algorithm for Coherent Sources

Sensors
This paper presents a new enhanced coprime array for direction of arrival (DOA) estimation. Coprime arrays are capable of estimating the DOA using coprime properties and outperforming uniform linear arrays.
Xiaolei Han, Xiaofei Zhang
doaj   +1 more source

SIGNALS FAST ACQUISITION ALGORITHM FOR GNSS RECEIVERS

Радіоелектронні і комп'ютерні системи, 2016
The synthesis of digital algorithm for fast search of navigation signals in GNSS is accomplished. The architecture of the corresponding device for quick search of signals is discussed, as well as its capabilities in comparison with traditional approaches.
И. В. Буняева
doaj   +1 more source

Coherent Combining and Long Coherent Integration for BOC Signal Acquisition under Strong Interference

Navigation, 2022
A coherent combining and long coherent integration (CCLCI) scheme is presented for standalone direct acquisition of binary offset carrier (BOC) signals under strong radio frequency interference (RFI).
Chun Yang, Andrey Soloviev, Ananth Vadlamani, Joung C. Ha   +3 more
doaj   +1 more source

Research on AUV Underwater Localization Method Based on an n-Shaped Array

Sensors
During continuous navigation of the mother ship, an autonomous underwater vehicle (AUV) can be recovered through an underwater hangar, and the accurate localization of the AUV relative to the mother ship is a key step in the recovery process.
Chuang Han, Mengran Gao, Tao Shen, Chengli Guo   +3 more
doaj   +1 more source

Partially coherent detection of PSK signals in Rician channels. [PDF]

, 1992
Coherent detection which has the best performance in ideal channels suffers in environments where there is significant phase noise (e.g. fading channels).
Tunca, Yasar.
core   +1 more source

Coherent Signal Direction Finding With Sensor Array Based on Back Propagation Neural Network

IEEE Access, 2019
An algorithm based on back propagation neural network and particle swarm optimization is proposed to solve the direction of arrival (DOA) estimation of coherent signals received by the sensor array in colored noise environment.
Baoyu Guo, Jiaqi Zhen
doaj   +1 more source