Results 241 to 250 of about 16,431,976 (329)
Some of the next articles are maybe not open access.
IEEE Transactions on Antennas and Propagation, 2022
The smart radio environment has become an eye-catching topic and is believed to own great potential in future wireless networks. Its essential demand lies in sensing and manipulating the electromagnetic (EM) fields accurately and simultaneously with the ...
Jun-Yan Dai +7 more
semanticscholar +1 more source
The smart radio environment has become an eye-catching topic and is believed to own great potential in future wireless networks. Its essential demand lies in sensing and manipulating the electromagnetic (EM) fields accurately and simultaneously with the ...
Jun-Yan Dai +7 more
semanticscholar +1 more source
Ship Detection and Direction Finding Based on Time-Frequency Analysis for Compact HF Radar
IEEE Geoscience and Remote Sensing Letters, 2021Ship detection at the sea surface is important for improving human marine activities. Most existing ship detection methods for high-frequency surface wave radar (HFSWR) are based on peak and constant false alarm rate (CFAR) detection and require a ...
Jia-Jia Cai +3 more
semanticscholar +1 more source
IEEE Transactions on Aerospace and Electronic Systems, 2021
In sensor array processing, the minimum sensor/element-spacing is usually restricted within a half-wavelength in order to avoid estimation aliasing. This would cause sensor/element mutual coupling when antenna-electromagnetics are considered.
Jin He, Linna Li, Ting Shu
semanticscholar +1 more source
In sensor array processing, the minimum sensor/element-spacing is usually restricted within a half-wavelength in order to avoid estimation aliasing. This would cause sensor/element mutual coupling when antenna-electromagnetics are considered.
Jin He, Linna Li, Ting Shu
semanticscholar +1 more source
2-D direction finding using parallel nested arrays with full co-array aperture extension
Signal Processing, 2021Sparse arrays, such as nested arrays, are able to resolve more sources than sensors because their difference co-arrays can provide O ( L 2 ) degrees-of-freedom (DOFs) with L physical sensors. Most of the existing nested array direction-finding algorithms
Jin He, Linna Li, Ting Shu
semanticscholar +1 more source
Direction Finding and Performance Analysis With 1 bit Time Modulated Array
IEEE Transactions on Antennas and Propagation, 2021A novel single-channel direction finding (DF) method with spatial spectrum estimation is proposed based on 1 bit time-modulated array (TMA). Its performance is analyzed from theoretical derivation to numerical simulations and compared with other existing
Gang Ni +4 more
semanticscholar +1 more source
Direction Finding in Bistatic MIMO Radar With Direction-Dependent Mutual Coupling
IEEE Communications Letters, 2021Mutual coupling (MC) effect exists extensively in sensor array, and it will adversely affect the direction finding in multiple-input multiple-output (MIMO) radar.
Jinlong Wu, Fangqing Wen, Junpeng Shi
semanticscholar +1 more source
A generalized approach to direction finding
IEEE Transactions on Acoustics, Speech, and Signal Processing, 1986With reference to the recently developed estimation of signal parameters using a rotational invariance techniques (ESPRIT) it is pointed out that other operators can be used to generate the matrix pencil. By way of example, the moving window operator is discussed. >
Hamza Ouibrahim +2 more
openaire +1 more source
A Performance Evaluation Framework for Direction Finding Using BLE AoA/AoD Receivers
IEEE Internet of Things Journal, 2020Bluetooth low energy (BLE) has been significantly contributed to the Internet of Things applications due to its advantages, such as low power consumption and scalability.
Cheng Huang +4 more
semanticscholar +1 more source
Direction finding with a rotating antenna
2012 20th Signal Processing and Communications Applications Conference (SIU), 2012Finding the direction of the emitters is a problem to be solved in many areas. One of the methods used for that purpose is that using a rotating directional antenna and obtaining the direction estimate by processing the measured signal amplitudes. Direction estimation, in principle, is based on the own antenna pattern modulation on the measured signal.
Berkin Yildirim, Aydin Bayri, Gokhan Gok
openaire +1 more source
A parametric direction finding technique
ICASSP '87. IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005The fundamental signal model for narrowband direction finding - the propagation of several sinusoidal planar wavefronts in a medium containing an array of sensors with additive Gaussian noise present - is assumed implicitly in most high resolution beamforming algorithms.
Darel A. Linebarger, Don H. Johnson
openaire +1 more source