+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Parameter Estimation of Micro-Motion Targets for High-Resolution-Range Radar Using Online Measured Reference

Parameter Estimation of Micro-Motion Targets for High-Resolution-Range Radar Using Online Measured Reference

Sensors 18(9):

Micro-motion dynamics produce Micro-range (m-R) signatures which are important features for target classification and recognition, provided that the range resolution of radar signal is high enough. However, dechirping the echo with reference measured by narrow bandwidth radar would generate the residual translational motion, which exhibits as random shifts of envelopes of range profiles. The residual translational motion would destroy the periodicity of m-R signatures and make a challenge to estimate rotational parameter. In this work, we proposed an efficient high-resolution range profile (HRRP)-based method to estimate rotational parameter, in which online measured reference distances are used to dechirp the radar raw echo. Firstly, the deduction for the modified first conditional comment of range profiles (MFCMRP) is introduced in detail, and the MFCMRP contain periodic and random components when dechirped by measured reference, corresponding to the rotational motion and the reference measured errors compared with actual reference. Secondly, the Wavelet Transform (WT) is utilized to separate the measured errors from the MFCMRP. The estimations of measured errors are used to compensate the MFCMRP, and then autocorrelation is performed on the estimated periodic component to obtain the estimation of rotational period. Lastly, the rotational amplitudes and phases are achieved by inverse Radon transform (IRT) of the compensated HRRP. The effectiveness of the proposed method in this paper is verified by synthetic data and measured radar data.

Please choose payment method:

(PDF emailed within 0-6 h: $19.90)

Accession: 065387407

Download citation: RISBibTeXText

PMID: 30142947

DOI: 10.3390/s18092773

Related references

Spectral characteristics of mixed micro-Doppler time-frequency data sequences in micro-motion and inertial parameter estimation of radar targets. Iet Radar Sonar & Navigation 8(4): 275-281, 2014

Motion Compensation of Moving Targets for High Range Resolution Stepped-Frequency Radar. Sensors 8(5): 3429-3437, 2008

Micromotion Parameter Estimation of Free Rigid Targets Based on Radar Micro-Doppler. IEEE Transactions on Geoscience and Remote Sensing 50(10): 3776-3786, 2012

Velocity Estimation and Range Shift Compensation for High Range Resolution Profiling in Stepped-Frequency Radar. IEEE Geoscience and Remote Sensing Letters 7(4): 791-795, 2010

Matching score properties between range profiles of high-resolution radar targets. IEEE Transactions on Antennas and Propagation 44(4): 444-452, 1996

Radar Constant-Modulus Waveform Optimization for High-Resolution Range Profiling of Stationary Targets. Sensors 17(11):, 2017

Joint inference of dominant scatterer locations and motion parameters of an extended target in high range-resolution radar. Iet Radar Sonar & Navigation 9(5): 519-530, 2015

High-resolution velocity estimation and range profile analysis of moving target for pulse LFM UWB radar. Signal Processing 91(10): 2420-2425, 2011

Detection and parameter estimation of manoeuvring targets with passive bistatic radar. Iet Radar Sonar & Navigation 6(8): 739-745, 2012

Estimation of the total rotational velocity of a non-cooperative target with a high cross-range resolution three-dimensional interferometric inverse synthetic aperture radar system. Iet Radar Sonar & Navigation 11(6): 1020-1029, 2017

Radar maneuvering target detection and motion parameter estimation based on TRT-SGRFT. Signal Processing 133: 107-116, 2017

Radar imaging of non-uniformly rotating targets via a novel approach for multi-component AM-FM signal parameter estimation. Sensors 15(3): 6905-6923, 2015

Generalised likelihood ratio test detector for micro motion targets in synthetic aperture radar raw signals. Iet Radar Sonar & Navigation 5(5): 528-0, 2011

Parameter estimation for rigid body after micro-Doppler removal based on L-statistics in the radar analysis. Journal of Systems Engineering and Electronics 26(3): 457-467, 2015

VSAR: a high resolution radar system for detection of moving targets. Iee Proceedings - Radar Sonar and Navigation 144(4): 205-0, 1997