Micro-Motion Parameter Measurement of Rigid Targets with Translation Based on Instantaneous Frequency Rate

Cai Wang; Cheng Fa Xu; Qi Feng; Mei Guo Gao

doi:10.15918/j.tbit1001-0645.2017.03.018

Micro-Motion Parameter Measurement of Rigid Targets with Translation Based on Instantaneous Frequency Rate

Cai Wang, Cheng Fa Xu^*, Qi Feng, Mei Guo Gao

^*Corresponding author for this work

School of Information and Electronics

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

In order to estimate the micro-motion parameters of rigid targets with second-order translation, a parameter measurement method based on short-time cubic phase function (CPF) and inverse Radon transform (IRT) was proposed. Based on the typical rotation micro-motion model, the instantaneous frequency rate (IFR) representation was first derived and analyzed after primary translation compensation. The short-time CPF was then used to obtain the two-dimensional time-IFR plane of radar echoes. Finally, based on the two-dimensional time-IFR plane, the translation compensation velocity error, acceleration error and micro-motion parameters were measured by taking advantage of the sinusoid curve measuring principle based on IRT. The simulations validate the effectiveness of the proposed method.

Original language	English
Pages (from-to)	318-324
Number of pages	7
Journal	Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology
Volume	37
Issue number	3
DOIs	https://doi.org/10.15918/j.tbit1001-0645.2017.03.018
Publication status	Published - 1 Mar 2017

Keywords

Cubic phase function
Instantaneous frequency rate
Inverse Radon transform
Micro-motion

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10.15918/j.tbit1001-0645.2017.03.018

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Wang, C., Xu, C. F., Feng, Q., & Gao, M. G. (2017). Micro-Motion Parameter Measurement of Rigid Targets with Translation Based on Instantaneous Frequency Rate. Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology, 37(3), 318-324. https://doi.org/10.15918/j.tbit1001-0645.2017.03.018

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title = "Micro-Motion Parameter Measurement of Rigid Targets with Translation Based on Instantaneous Frequency Rate",

abstract = "In order to estimate the micro-motion parameters of rigid targets with second-order translation, a parameter measurement method based on short-time cubic phase function (CPF) and inverse Radon transform (IRT) was proposed. Based on the typical rotation micro-motion model, the instantaneous frequency rate (IFR) representation was first derived and analyzed after primary translation compensation. The short-time CPF was then used to obtain the two-dimensional time-IFR plane of radar echoes. Finally, based on the two-dimensional time-IFR plane, the translation compensation velocity error, acceleration error and micro-motion parameters were measured by taking advantage of the sinusoid curve measuring principle based on IRT. The simulations validate the effectiveness of the proposed method.",

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AU - Feng, Qi

AU - Gao, Mei Guo

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N2 - In order to estimate the micro-motion parameters of rigid targets with second-order translation, a parameter measurement method based on short-time cubic phase function (CPF) and inverse Radon transform (IRT) was proposed. Based on the typical rotation micro-motion model, the instantaneous frequency rate (IFR) representation was first derived and analyzed after primary translation compensation. The short-time CPF was then used to obtain the two-dimensional time-IFR plane of radar echoes. Finally, based on the two-dimensional time-IFR plane, the translation compensation velocity error, acceleration error and micro-motion parameters were measured by taking advantage of the sinusoid curve measuring principle based on IRT. The simulations validate the effectiveness of the proposed method.

AB - In order to estimate the micro-motion parameters of rigid targets with second-order translation, a parameter measurement method based on short-time cubic phase function (CPF) and inverse Radon transform (IRT) was proposed. Based on the typical rotation micro-motion model, the instantaneous frequency rate (IFR) representation was first derived and analyzed after primary translation compensation. The short-time CPF was then used to obtain the two-dimensional time-IFR plane of radar echoes. Finally, based on the two-dimensional time-IFR plane, the translation compensation velocity error, acceleration error and micro-motion parameters were measured by taking advantage of the sinusoid curve measuring principle based on IRT. The simulations validate the effectiveness of the proposed method.

KW - Cubic phase function

KW - Instantaneous frequency rate

KW - Inverse Radon transform

KW - Micro-motion

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Micro-Motion Parameter Measurement of Rigid Targets with Translation Based on Instantaneous Frequency Rate

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Keywords

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