Results 71 to 80 of about 311 (170)
IEEE Access, 2018 In this paper, a novel array structure exploiting coprime arrays is proposed which can be very proficient to determine the number of consecutive lags in proportion with the number of array elements.
Tarek Hasan Al Mahmud +4 more
doaj +1 more source
Research on Three‐Dimensional Autonomous Obstacle Avoidance Path Planning Methods for UAVs
Transactions on Emerging Telecommunications Technologies, Volume 37, Issue 2, February 2026.This study presents a three‐dimensional autonomous obstacle‐avoidance path planning method for unmanned aerial vehicles (UAVs) based on a deep reinforcement learning (DRL)‐enhanced Mayfly Algorithm. The traditional Mayfly Algorithm suffers from issues such as random initial population generation and slow convergence.
Chong Wu, Hao Cheng, Hua Wang
wiley +1 more source
A Novel Noncircular MUSIC Algorithm Based on the Concept of the Difference and Sum Coarray
Sensors, 2018 In this paper, we propose a vectorized noncircular MUSIC (VNCM) algorithm based on the concept of the coarray, which can construct the difference and sum (diff–sum) coarray, for direction finding of the noncircular (NC) quasi-stationary sources ...
Zhenhong Chen +3 more
doaj +1 more source
Triple extended coprime array for single‐snapshot DoA estimation
Electronics LettersThe direction‐of‐arrival (DoA) estimation methods based on coprime array (CA) largely rely on having a sufficient number of snapshots. However, under single‐snapshot conditions typical of vehicle‐mounted imaging radar, CA‐based DoA estimation often ...
Tianyao Long +3 more
doaj +1 more source
Sparse DOA Estimation Based on Multi-Level Prime Array With Compression
IEEE Access, 2019 A signal emitter can be located using diverse types of direction finding (DF) techniques. One of the most widely used techniques is the direction of arrival (DOA) estimation using antenna arrays.
Saleh A. Alawsh, Ali H. Muqaibel
doaj +1 more source
Coherent DOA estimation based on low-rank matrix recovery with coprime arrays in nonuniform noise
EURASIP Journal on Advances in Signal ProcessingIn this paper, a novel low-rank matrix recovery-based direction of arrival estimation algorithm is proposed for coherent signals with coprime arrays under nonuniform noise conditions.
Youzhen Yang, Jianhui Wang, Zhenyu Wang
doaj +1 more source
IEEE Access, 2018 Direct position determination (DPD) is a new promising technique in wireless location. Compared with conventional two-step localization methods, DPD achieves a higher accuracy by directly estimating the source location without computing the intermediate ...
Yan-Kui Zhang +4 more
doaj +1 more source
Direction of arrival estimation with coprime arrays
Estimation de la direction d’arrivée avec les réseaux coprimes L'estimation de la direction d'arrivée (DOA) des sources avec les réseaux coprimes a été beaucoup étudiée grâce à leurs degrés de liberté (DOFs) élévés et leurs meilleures performances d'estimation.
openaire +2 more sources
COPRIME ARRAYS WITH ENHANCED DEGREES OF FREEDOM
Anadolu University Journal of Science and Technology-A Applied Sciences and Engineering, 2018 Coprime array geometries provide robust performance for direction-of-arrival estimation problem with more sources than sensor elements. In previous works it is shown that K source directions can be resolved using only 2M + N -1 sensor elements where K is less than or equal to MN.
openaire +3 more sources
IET Radar, Sonar & NavigationNowadays, sparse arrays have been a focus for direction‐of‐arrival (DOA). The existing arrays can achieve high degree of freedom (DOF) bigger than the number of sensors when using the spatial smoothing methods.
Jin Zhang +4 more
doaj +1 more source