OFDM-Based Precise Ranging Technique in Space Applications

Author

Ren, Guangliang ; Sun, Chuiqiang ; Ni, Hao ; Bai, Yun

Author_Institution

State Key Lab. of ISN, Xidian Univ., Xi´´an, China

Volume

47

Issue

3

fYear

2011

fDate

7/1/2011 12:00:00 AM

Firstpage

2217

Lastpage

2221

Abstract

A novel ranging technique based on orthogonal frequency division multiplexing (OFDM) is proposed for the ranging systems in space by using the properties of OFDM in time and frequency domains. The coarse estimation of the time delay is obtained by the correlation of the waveforms of OFDM signals in the time domain, and the fine estimation of the time delay is obtained by the phase differences between the subcarriers in the frequency domain by the proposed method. The simulation results show that the performance of the proposed technique is better than that of the pseudonoise ranging method and that of the phase ranging method.

Keywords

OFDM modulation; correlation methods; delay estimation; space communication links; time-frequency analysis; OFDM-based precise ranging technique; coarse estimation; frequency domain analysis; orthogonal frequency division multiplexing; phase difference; phase ranging method; pseudonoise ranging method; space application; time delay estimation; time domain analysis; waveform correlation; Accuracy; Delay effects; Distance measurement; Estimation; Frequency domain analysis; OFDM; Transceivers;

fLanguage

English

Journal_Title

Aerospace and Electronic Systems, IEEE Transactions on

Publisher

ieee

ISSN

0018-9251

Type

jour

DOI

10.1109/TAES.2011.5937294

Filename

5937294