High‐sensitivity OAM phase gradient detection based on time‐modulated harmonic characteristic analysis. Issue 12 (1st June 2017)

• Record Type: Journal Article
• Authors: Chen, Jingfeng; Liang, Xianling; He, Chong; Geng, Junping; Jin, Ronghong
• Is Part Of: Electronics letters. Volume 53:Issue 12(2017)
• Page Start: 812
• Page End: 814
• Publication Date: 2017-06-01
• Subjects: error statistics -- Monte Carlo methods -- gradient methods -- modulation; Monte‐Carlo simulation -- bit error rate -- two‐element time‐modulated array -- orbital angular momentum modes -- time‐modulated harmonic characteristic analysis -- high‐sensitivity OAM phase gradient detection method; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2016.4689
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : A novel phase gradient method for detecting orbital angular momentum modes is proposed. By utilising a two‐element time‐modulated array, the phase gradient of the received signal is estimated through analysing the modulated harmonic component. The bit error rate performances are evaluated using Monte‐Carlo simulation. Results show that the sensitivity strongly depends on the number of sampling modulation pulses. Compared with the conventional phase gradient receiver, the proposed method obviously enhances the performance of detection.