Compute the steering vector for a 4-element ULA at an operating frequency of 1 GHz. Assume that the waveform is incident on the array from 45° azimuth and 10° elevation. fc = 1e9; array = phased.ULA(4); steervec = phased.SteeringVector('SensorArray',array); sv = steervec(fc,[45...
In practical terms, direct data domain least squares (DLS) beamforming algorithm performance is severely decreased by the array steering vector uncertainty. In this paper, we investigate the performance of DLS approach for beamforming. Uniform linear antenna array radar of dipole antenna is considered...
A Uniform Linear Array (ULA) is a collection of sensor elements equally spaced along a straight line. The most common type of sensor is a dipole antenna that can transmit and receive Electromagnetic Waves over the air. Other types of sensors include acou
The above near-field beam training schemes for narrowband and wideband systems are only applicable to a uniform linear array (ULA). Nevertheless, in ULA systems, the array gain degrades dramatically near the end-fire because of the reduced effective array aperture [11]. To cope with this draw...
Therefore, this work presents a new technique that synthesizes shaped beam patterns through the control of non-uniformly samples of the array factor, both in amplitude and phase. The sample phases increase the number of degrees of freedom. To produce complex patterns, the sample phases of the ...
Navigation service special squad navy marine maritime forces with anchor and steering wheel isolated. Vector patch on military officer uniform insignia of armed forces of naval warfare combat,站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含正版
Taxi driver in uniform surrounded by taxi service sketched icons as a car parking sign luggage steering wheel navigation map and call center. Vector sketch illustration,站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含正版商业图片、艺术插画
circulararray. Inthispaperwepresentapreprocessingtechniquethatex- tendstheapplicationofspatialsmoothingtouniformcircular arrays.Thekeytothistechniqueisthetransformationofthe signalsreceivedbythearraytoavirtualarraywhosestructure isamenabletotheapplicationofspatialsmoothing.Inthe caseofanidealuniformcirculararraythe...
the scan converter 6 converts the acoustic image data from polar coordinate (R-θ) sector format or Cartesian coordinate linear array to appropriately scaled Cartesian coordinate display pixel data at the video rate. This scan-converted acoustic data is then output for display on display monitor 8...
a planar array is needed when estimates of source azimuth and elevation are required. Such well-known planar arrays include the two-orthogonal uniform linear array (the L-shaped array) [1], the rectangular array [2], and the uniform circular array (UCA) [3–7]. The UCA is able to prov...