Design of an Efficient Wideband Beamformer using OPSO
Diksha Thakur1, Vikas Baghel2, Salman Raju Talluri3
1Diksha Thakur, Department of Electronics and Communication, Jaypee University of Information Technology, Solan, India.
2Dr. Vikas Baghel, Department of Electronics and Communication, Jaypee University of Information Technology, Solan, India.
3Dr. Salman Raju Talluri, Department of Electronics and Communication, Jaypee University of Information Technology, Solan, India.
Manuscript received on 27 August 2019. | Revised Manuscript received on 03 September 2019. | Manuscript published on 30 September 2019. | PP: 2144-2152 | Volume-8 Issue-11, September 2019. | Retrieval Number: K20200981119/2019©BEIESP | DOI: 10.35940/ijitee.K2020.0981119
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Wideband beamforming is a technique which is used to produce frequency invariant beampatterns over a wide signal bandwidth. In this paper, orthogonal particle swarm optimization (OPSO) based wideband beamformer is designed to achieve wideband beamforming. Simulations are carried out for two different scenarios to illustrate the capability of the algorithm for wideband beamforming. The beampatterns obtained from three different methods that are standard Frost algorithm, particle swarm optimization (PSO) and OPSO are compared by various parameters such as level of interference, deviation in interference angle and peak side lobe level. It is shown that by using OPSO, SLL (Sidelobe Level), null depth as well as angle deviation in nulls direction can be reduced as compared to PSO and Frost algorithms.
Keywords: Orthogonal particle swarm optimization, PSO, wideband beamforming.
Scope of the Article: Swarm Intelligence