Performance assessment of antenna array for an unmanned air vehicle

Abstract

In this paper, the performance of Linear Antenna Array Element (LAAE) has been evaluated at the Base Station (BS) with a different number of elements for Unmanned Air Vehicle UAV application. The Switched Beam (SB) and Phase Array (PA) have been used as a steering beam mechanism. The beam steering tracker is based on the GPS points of the UAV and the BS. In addition, the Misalignment angle has been analyzed for SB and PA corresponding to the maximum speed of the UAV. The compression between SB and PA in term of Bit Error Rate (BER) vs. Signal to Noise Ratio (SNR) and BER vs. Misalignment angle have been examined by using Matlab. The results show that the PA has better performance than SB in both terms under Additive White Gaussian Noise (AWGN) channel with an interference signal. When the number of the elements is eight provides longer distance than four by the factor (1.5 in SB case and 2 in PA case) and wider Misalignment angle range than twelve by factor (2 in SW case and 3 in PA case). Therefore, it is becoming a useful option for many applications.

The Recent Advancement in Unmanned Aerial Vehicle Tracking Antenna: A Review

“…Imagine an arbitrary array antenna consisting of several radiating elements M separated by a distance d. Arrays are primarily used as directors to align the incident and reflected signals to a desired beamwidth. Thus, the array factor (AF) of the incoming signal is modelled as [ 82 , 83 ]: where array phase function and the propagation constant , denotes the wavelength, is the phase angle between the elements, is the desired angle of arrival (AoA) of the incoming signal. The propagation constant is a measure of changes in a sinusoidal electromagnetic wave in terms of amplitude and phase, while propagating through a medium.…”

“…Hence, the directivity of such an array is equal to M . It is plausible to derive the beam width of an arbitrary M isotropic elements spaced by a wavelength using this formula [ 83 ]: …”

“…Great circle is the shortest distance along the earth equator. In a clear line of sight scenario, the range can be obtained by using a Friis transmission model, ignoring the earth bulge factor [ 83 ]. Alternatively, spherical law of cosines equations can be used [ 31 ].…”

Intelligent Optimization of PC-GFDM Transceiver

“…GFDM is designed based on the time-frequency structure to approve the requirements of all kinds of applications. Thus, it is the next-generation candidate for communication systems [2,3]. In order to optimize the GFDM transceiver, various types of technology and algorithms are added, such as polar code (PC), interleaver, genetic algorithm (GA), artificial neural network (ANN), estimation, equalization, Etc.…”