Next Article in Journal
Fault Detection Using the Clustering-kNN Rule for Gas Sensor Arrays
Previous Article in Journal
An Improved Zero Potential Circuit for Readout of a Two-Dimensional Resistive Sensor Array
Article Menu

Export Article

Open AccessArticle
Sensors 2016, 16(12), 2066; doi:10.3390/s16122066

A Robust Range Grating Lobe Suppression Method Based on Image Contrast for Stepped-Frequency SAR

1
Beijing Key Laboratory of Embedded Real-Time Information Processing Technology, School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China
2
National Key Laboratory of Microwave Imaging Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing 100080, China
*
Author to whom correspondence should be addressed.
Academic Editor: Assefa M. Melesse
Received: 8 October 2016 / Revised: 29 November 2016 / Accepted: 1 December 2016 / Published: 6 December 2016
(This article belongs to the Section Remote Sensors)
View Full-Text   |   Download PDF [2913 KB, uploaded 6 December 2016]   |  

Abstract

The magnitude error and phase error (MEPE) in the transfer function of a stepped-frequency synthetic aperture radar (SAR) system results in a periodic MEPE in the synthesized wideband waveform (SWW), which induces the grating lobes in the high-resolution range profile (HRRP). In this paper, a robust data-driven grating lobe suppression (GLS) method is proposed. Based on a contrast-based error estimation method and the grating lobes of the brightest scatterers in the SAR image, the periodic MEPE can be robustly estimated using the proposed method. By compensating the estimated periodic MEPE, the range grating lobes can be suppressed to the background level of the SAR image. Simulation results and real data processing have demonstrated the superiority of the proposed method. View Full-Text
Keywords: contrast-based; grating lobe suppression (GLS); magnitude error and phase error (MEPE); stepped-frequency; synthetic aperture radar (SAR) contrast-based; grating lobe suppression (GLS); magnitude error and phase error (MEPE); stepped-frequency; synthetic aperture radar (SAR)
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Gao, W.-B.; Long, T.; Ding, Z.-G.; Wu, Y.-R. A Robust Range Grating Lobe Suppression Method Based on Image Contrast for Stepped-Frequency SAR. Sensors 2016, 16, 2066.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top