Preprint Article Version 1 This version is not peer-reviewed

A Fast Motion Parameters Estimation Method Based on Cross-Correlation of Adjacent Echoes for Wideband LFM Radars

Version 1 : Received: 15 April 2017 / Approved: 17 April 2017 / Online: 17 April 2017 (05:00:46 CEST)

A peer-reviewed article of this Preprint also exists.

Zhang, Y.-X.; Hong, R.-J.; Yang, C.-F.; Zhang, Y.-J.; Deng, Z.-M.; Jin, S. A Fast Motion Parameters Estimation Method Based on Cross-Correlation of Adjacent Echoes for Wideband LFM Radars. Appl. Sci. 2017, 7, 500. Zhang, Y.-X.; Hong, R.-J.; Yang, C.-F.; Zhang, Y.-J.; Deng, Z.-M.; Jin, S. A Fast Motion Parameters Estimation Method Based on Cross-Correlation of Adjacent Echoes for Wideband LFM Radars. Appl. Sci. 2017, 7, 500.

Journal reference: Appl. Sci. 2017, 7, 500
DOI: 10.3390/app7050500

Abstract

In wideband radar systems, the performance of motion parameters estimation can significantly affect the performance of object detection and the quality of inverse synthetic aperture radar (ISAR) imaging. Although the traditional motion parameters estimation methods can reduce the range migration (RM) and Doppler frequency migration (DFM) effects in ISAR imaging, the computational complexity is high. In this paper, we propose a new fast non-searching motion parameters estimation method based on cross-correlation of adjacent echoes (CCAE) for wideband LFM signals. A cross-correlation operation is carried out for two adjacent echo signals, then the motion parameters can be calculated by estimating the frequency of the correlation result. The proposed CCAE method can be applied directly to the stretching system, which is commonly adopted in wideband radar systems. Simulational results demonstrate that the new method can achieve better estimation performances, with much lower computational cost, compared with existing methods. The experimental results on real radar data sets are also evaluated to verify the effectiveness and superiority of the proposed method compared to the state-of-the-art existing methods.

Subject Areas

motion parameters estimation, wideband LFM radar, cross-correlation.

Readers' Comments and Ratings (0)

Leave a public comment
Send a private comment to the author(s)
Rate this article
Views 0
Downloads 0
Comments 0
Metrics 0
Leave a public comment

×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.