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Detection and Parameter Estimation of Multicomponent LFM Signal Based on the Cubic Phase Function
2008
EURASIP Journal on Advances in Signal Processing
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A new algorithm for the detection and parameters estimation of LFM signal is presented in this paper. ...
By the computation of the cubic phase function (CPF) of the signal, it is shown that the CPF is concentrated along the frequency rate law of the signal, and the peak of the CPF yields the estimate of the ...
DETECTION AND PARAMETER ESTIMATION OF LFM SIGNAL BASED ON CPF The cubic phase function (CPF) was introduced in [8] for the purpose of estimating the instantaneous frequency rate law of a quadratic FM ...
doi:10.1155/2008/743985
fatcat:2jrbkfltibbrjopfh2kcqyilbu
ISAR Imaging of Rotating Target with Equal Changing Acceleration Based on the Cubic Phase Function
2008
EURASIP Journal on Advances in Signal Processing
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The CP function is applied to estimate the parameters of the multicomponent cubic phase signals, and the clear instantaneous ISAR images are obtained. ...
Hence, the ISAR imaging of rotating target with equal changing acceleration based on the cubic phase (CP) function is presented in this paper. ...
At the same time, a new efficient algorithm for detection and parameters estimation of the multicomponent cubic phase signals based on the CP function is presented. ...
doi:10.1155/2008/491382
fatcat:ty2rhjduxjd4lj3yweopzifkyq
The ambiguity function associated with the linear canonical transform
2012
EURASIP Journal on Advances in Signal Processing
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A new kind of ambiguity function (AF) associated with the linearcanonical transform (LCT) is proposed in this article, this new AF is defined based on the LCT and the classical AF. ...
Then, the newly defined AF is applied to detect the parameters of the linear frequency modulated signals by combining with the classical Radon transform. ...
Hai Jin of the Beijing Institute of Technology for many discussions and the proofreading of the manuscript. ...
doi:10.1186/1687-6180-2012-138
fatcat:5pexov3wqbeazkyyamkdgutpr4
Inverse synthetic aperture radar imaging of targets with nonsevere maneuverability based on the centroid frequency chirp rate distribution
2015
Journal of Applied Remote Sensing
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be modeled as multicomponent linear frequency modulation (LFM) signals after the range alignment and the phase adjustment. ...
In ISAR imaging with the LFM signal model, the chirp rate deteriorates the target image and an effective parameter estimation algorithm is required. ...
Acknowledgments We acknowledge support from National Natural Science Foundation of China (No. 61001204), the Science and Technology Foundation of Shaanxi Province (No. 2012JM8015), and the Xi'an Polytechnic ...
doi:10.1117/1.jrs.9.095065
fatcat:sgcvubkcfffy7p2miy2w5t5hbe
ISAR Imaging of Ship Target with Complex Motion Based on New Approach of Parameters Estimation for Polynomial Phase Signal
2011
EURASIP Journal on Advances in Signal Processing
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In this paper, the received signal is modeled as a multicomponent cubic phase signal (CPS), and a new method for estimating the parameters of CPS based on the integrated high-order matched phase transform ...
This algorithm is simpler and more computational efficient than some of other parameters estimation algorithms proposed previously. ...
By the multiplication of high-order matched-phase transform slices for the cubic phase signal at different time positions, the parameters of the multicomponent cubic phase signal can be estimated. ...
doi:10.1155/2011/425203
fatcat:c3pxshnbjrbebgmysaq3ix6ab4
Nonuniformly-Rotating Ship Refocusing in SAR Imagery Based on the Bilinear Extended Fractional Fourier Transform
2020
Sensors
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The ship signal in a range bin can be modeled as a multicomponent cubic phase signal (CPS) after motion compensation. ...
On the basis of the ISAR technique, several parameter estimation algorithms were proposed for nonuniformly rotating ships. ...
All authors have read and agreed to the published version of the manuscript. Funding: This work was supported by the National Natural Science Foundation of China 61901442. ...
doi:10.3390/s20020550
pmid:31963950
pmcid:PMC7014478
fatcat:zfmihw2xifhjbjjkuc54ie4fpy
An Inverse Synthetic Aperture Ladar Imaging Algorithm of Maneuvering Target Based on Integral Cubic Phase Function-Fractional Fourier Transform
2018
Electronics
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To solve this problem, an ISAL imaging algorithm based on integral cubic phase function-fractional Fourier transform (ICPF-FRFT) is proposed in this paper. ...
On this basis, the chirp rate of the echo signal is quickly estimated by using the ICPF algorithm, which uses the non-uniform fast Fourier transform (NUFFT) method for fast calculations. ...
The parameter estimation method models the signal echo into a multi-component signal model, then uses the signal estimation method to estimate the maneuvering parameters of the signal and then compensates ...
doi:10.3390/electronics7080148
fatcat:ibms7b7p5vetdbbwcc3gj7jhl4
Inverse synthetic aperture radar imaging of targets with complex motion based on the local polynomial ambiguity function
2016
Journal of Applied Remote Sensing
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This paper focuses on a parameter estimation algorithm for multicomponent CPSs based on the local polynomial ambiguity function (LPAF), which is simple and can be easily implemented via the complex multiplication ...
In inverse synthetic aperture radar (ISAR) imaging of targets with complex motion, the azimuth echoes have to be modeled as multicomponent cubic phase signals (CPSs) after motion compensation. ...
Qian Lv conceived the work in this paper that led to the submission, experiment design, and accomplishment of the writing of the manuscript. ...
doi:10.1117/1.jrs.10.015019
fatcat:qtlmuuyifbexjdhqmyh4yprd4q
Analysis of Maneuvering Targets with Complex Motions by Two-Dimensional Product Modified Lv's Distribution for Quadratic Frequency Modulation Signals
2017
Sensors
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The proposed estimation algorithm is based on a novel multi-scale parametric symmetric self-correlation function (PSSF) and the idea of keystone transform. ...
Correlation algorithms include the higher order ambiguity function (HAF) [2], the product higher order ambiguity function [25], the cubic phase function (CPF) [26,27], the product generalized cubic phase ...
Conflicts of Interest: The authors declare no conflict of interest. ...
doi:10.3390/s17061460
pmid:28635640
pmcid:PMC5492187
fatcat:sfb7q7fnmzhmng3ze5exsmrwj4
ISAR Imaging of Ship Targets Based on an Integrated Cubic Phase Bilinear Autocorrelation Function
2017
Sensors
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multicomponent cubic phase signals (CPSs). ...
based on the integrated cubic phase bilinear autocorrelation function (ICPBAF). ...
The CPF, IGCPF, SCFT-based algorithm, GSCFT-based algorithm, GDT-based algorithm and ICPBAF can estimate parameters of noisy multicomponent CPSs. ...
doi:10.3390/s17030498
pmid:28273800
pmcid:PMC5375784
fatcat:5uywmrw2l5gkvkz37755xndqpa
Airborne SAR Moving Target Signatures and Imagery Based on LVD
2015
IEEE Transactions on Geoscience and Remote Sensing
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LVD, essentially, is an operator that removes the linear slope of the LFM signal and further cumulates the de-signal with additive cubic phase, it may not be able to concentrate the entire parabola distribution ...
In presence of the cubic phase, severe degradation in the LVD representation will occur, since LVD is originally designed for LFM signal representation. ...
doi:10.1109/tgrs.2015.2429678
fatcat:hr36ypau5fbcbdizali5sown6m
Multiple-view time–frequency distribution based on the empirical mode decomposition
2010
IET Signal Processing
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Original citation Stevenson, NJ, Mesbah, M, Boashash, B; (2010) 'Multiple-view timefrequency distribution based on the empirical mode decomposition'. Iet Signal Processing, 4 (4) :447-456. ...
It was also shown to have performance comparable to the WVD when estimating the instantaneous frequency (IF) of multiple signal components in the presence of noise. ...
A time-frequency representation (the HHT) can be formed using estimates of a k (t) and φ k (t). These functions are estimated using the magnitude and phase of their analytic associates. ...
doi:10.1049/iet-spr.2009.0084
fatcat:ocdi6el5vbcx3j3r2qmfe7gg7u
Quadratic Frequency Modulation Signals Parameter Estimation Based on Two-Dimensional Product Modified Parameterized Chirp Rate-Quadratic Chirp Rate Distribution
2018
Sensors
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Two representative correlation algorithms, the high order ambiguity function (HAF) [14] and cubic phase function (CPF) [9, 15, 16] , reduce the order of the QFM signal by multilinear and bilinear transforms ...
Compared with high order ambiguity function-integrated cubic phase function and modified Lv's distribution, the simulation results verify that the 2D-PMPCRD acquires higher anti-noise performance and obtains ...
Therefore, many algorithms for LFM signal parameters estimation have been proposed, such as Wigner-Ville distribution (WVD) [7] , fractional Fourier transform (FrFT) [8] , cubic phase function (CPF) ...
doi:10.3390/s18051624
pmid:29783724
pmcid:PMC5982564
fatcat:nysdtyerbvhbrhvvpxo6rhkt2q
An Efficient SAR Ground Moving Target Refocusing Method Based on PPFFT and Coherently Integrated CPF
2019
IEEE Access
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In this work, an efficient ground moving target refocusing method based on pseudopolar fast Fourier transform (PPFFT) and coherently integrated cubic phase function (CICPF) is proposed without a priori ...
First, based on the known radar platform motion parameters, the range curvature correction is completed, and then the range walk is corrected using the efficient PPFFT via estimating the slope of the range ...
Recently, the instantaneous frequency estimation method based on cubic phase function (CPF) is proposed in [35] - [38] . ...
doi:10.1109/access.2019.2930560
fatcat:riykmnirzzgalavyq5ur5vjv2i
ISAR Imaging of Nonuniformly Rotating Targets with Low SNR Based on Third Order Autocorrelation Function
2020
IEEE Access
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For nonuniformly rotating targets, the received signals in a range cell can be modeled as multicomponent cubic phase signals (CPSs) after the migration compensation and translation-induced phase error ...
on a novel parameter estimation method is proposed. ...
Several ISAR imaging algorithms based on the parameter estimation methods for LFM signals have been presented [10] - [14] . ...
doi:10.1109/access.2020.2985533
fatcat:pnleslnvebc25fim3sey4tfysa
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