Direction Finding by Time-Modulated Array With Harmonic Characteristic Analysis

Author

Chong He ; Xianling Liang ; Zhaojin Li ; Junping Geng ; Ronghong Jin

Author_Institution

Dept. of Electron. Eng., Shanghai Jiao Tong Univ., Shanghai, China

Volume

14

fYear

2015

fDate

2015

Firstpage

642

Lastpage

645

Abstract

A novel direction-finding method by the time-modulated array (TMA) is proposed through analyzing the harmonic characteristic of received signal, which requires only two antenna elements and a single RF channel. The signal processing of the proposed method is concise, and its calculation amount concentrates on a two-point discrete Fourier transform (DFT). Numeric simulations are provided to examine the performance of the proposed method, and a simple S band two-element TMA is constructed and tested to verify its effectiveness.

Keywords

UHF antennas; antenna arrays; discrete Fourier transforms; microwave antennas; radio direction-finding; signal processing; DFT; S band two-element TMA; antenna elements; direction finding; discrete Fourier transform; harmonic characteristic analysis; received signal; signal processing; single RF channel; time modulated array; Antennas; Arrays; Discrete Fourier transforms; Harmonic analysis; Modulation; Numerical models; Radio frequency; Direction finding; discrete Fourier transform (DFT); time-modulated array (TMA);

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2014.2373432

Filename

6965580