A New Time-Shift Invariant Feature of Radar HRRPs

Liu Jing; Zhang Jun-ying; Zhao Feng

doi:10.3724/SP.J.1146.2007.00024

Volume 30 Issue 8

Jan. 2011

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Article Navigation > Journal of Electronics & Information Technology > 2008 > 30(8): 1949-1953

Liu Jing, Zhang Jun-ying, Zhao Feng. A New Time-Shift Invariant Feature of Radar HRRPs[J]. Journal of Electronics & Information Technology, 2008, 30(8): 1949-1953. doi: 10.3724/SP.J.1146.2007.00024

Citation:

Liu Jing, Zhang Jun-ying, Zhao Feng. A New Time-Shift Invariant Feature of Radar HRRPs[J]. Journal of Electronics & Information Technology, 2008, 30(8): 1949-1953. doi: 10.3724/SP.J.1146.2007.00024

Liu Jing, Zhang Jun-ying, Zhao Feng. A New Time-Shift Invariant Feature of Radar HRRPs[J]. Journal of Electronics & Information Technology, 2008, 30(8): 1949-1953. doi: 10.3724/SP.J.1146.2007.00024

Citation:

Liu Jing, Zhang Jun-ying, Zhao Feng. A New Time-Shift Invariant Feature of Radar HRRPs[J]. Journal of Electronics & Information Technology, 2008, 30(8): 1949-1953. doi: 10.3724/SP.J.1146.2007.00024

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A New Time-Shift Invariant Feature of Radar HRRPs

doi: 10.3724/SP.J.1146.2007.00024

Received Date: 2007-01-05
Rev Recd Date: 2007-06-28
Publish Date: 2008-08-19

Abstract

Abstract

Radar High-Resolution Range Profile (HRRP) is very sensitive to time-shift; therefore, HRRP-based Radar Automatic Target Recognition (RATR) requires efficient time-shift invariant features. A new time-shift invariant feature, i.e., amplitude spectrum difference of HRRP, is extracted from HRRP to solve the time-shift sensitivity. The result of theoretical analysis shows that, as a time-shift invariant feature, amplitude spectrum difference is more suitable for HRRP-based RATR than amplitude spectrum is. Shortest distance classifier and Support Vector Machine (SVM) classifier are designed to evaluate the recognition performance. Experimental results for measured data show that, comparing with amplitude spectrum, amplitude spectrum difference improves recognition performance remarkably.

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References(1)

References

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