Results 1 to 10 of about 185,254 (160)

Robust Adaptive Beamforming Algorithm Based on Improved Generalized Linear Combination [PDF]

open access: yesSensors
Conventional adaptive beamforming algorithms often suffer from significant performance degradation when steering vector mismatches and covariance matrix estimation errors occur.
Zhiqi Gao   +5 more
doaj   +2 more sources

Cooperative Anti-Deception Jamming in a Distributed Multiple-Radar System under Registration Errors

open access: yesSensors, 2022
A distributed multiple-radar system has natural advantages in anti-deception jamming. However, most of the anti-jamming methods are proposed in full spatial registration. In practice, the registration error is difficult to eliminate, which will seriously
Shanshan Zhao, Minju Yi, Ziwei Liu
doaj   +1 more source

Near-Field Beamforming Algorithms for UAVs

open access: yesSensors, 2023
This study presents three distributed beamforming algorithms to address the challenges of positioning and signal phase errors in unmanned aerial vehicle (UAV) arrays that hinder effective beamforming.
Yinan Zhang   +5 more
doaj   +1 more source

DETECTING MULTIPATH EFFECTS ON SMARTPHONE GNSS MEASUREMENTS USING CMCD AND ELEVATION-DEPENDENT SNR SELECTION TECHNIQUE [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
Regarding increasing smartphone receivers' usage in science and industry, they must improve their positioning algorithms to increase positioning accuracy and location-based software's productivity.
S. Nasr-Azadani   +5 more
doaj   +1 more source

Detector Randomization and Stochastic Signaling for Minimum Probability of Error Receivers [PDF]

open access: yesIEEE Transactions on Communications, 2012
Optimal receiver design is studied for a communications system in which both detector randomization and stochastic signaling can be performed. First, it is proven that stochastic signaling without detector randomization cannot achieve a smaller average probability of error than detector randomization with deterministic signaling for the same average ...
Berkan Dulek, Sinan Gezici
openaire   +4 more sources

FCM-SSGP Method for Ultra-Wideband Indoor Localization [PDF]

open access: yesJisuanji gongcheng, 2023
Obstacles such as indoor walls, glass, and wooden doors influence the propagation environment of Ultra-Wideband(UWB) signals in UWB indoor positioning, and the environment becomes a Non-Line-of-Sight(NLOS) environment, in which positioning considerably ...
ZHANG Sheng, TANG Fan, ZHANG Tianqi, FAN Sen
doaj   +1 more source

Formation of a signal with Hartley amplitude-phase modulation as the sum of two signals with Hartley amplitude modulation

open access: yesTrudy Odesskogo Politehničeskogo Universiteta
The paper presents the results of the research, which outcome in the development of a theoretical justification for a new type of modulation – Hartley amplitude-phase modulation.
Олександр Борисович Коханов
doaj   +5 more sources

RSSI-Based Localization Schemes for Wireless Sensor Networks Using Outlier Detection

open access: yesJournal of Sensor and Actuator Networks, 2021
The received signal strength indicator (RSSI) of RF signals is a cost-effective solution for distance estimation, which makes it a practical choice for localization schemes in wireless sensor networks (WSN).
Ndubueze Chuku, Asis Nasipuri
doaj   +1 more source

Array amplitude-phase and mutual coupling error joint correction method based on sparse Bayesian

open access: yesTongxin xuebao, 2022
In the actual array direction finding system, there are often a variety of errors such as amplitude and phase, mutual coupling, which lead to serious deterioration of array direction finding performance.In order to solve the problem of array direction ...
Ding WANG, Weigang GAO, Zhidong WU
doaj   +2 more sources

Passive Joint Emitter Localization with Sensor Self-Calibration

open access: yesRemote Sensing, 2023
This paper studies the problem surrounding distributed passive arrays (sensors) locating multiple emitters while performing self-calibration to correct possible errors in the assumed array directions.
Guangbin Zhang   +5 more
doaj   +1 more source

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