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Enhanced pulse amplitude estimation for electronic warfare systems.

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Title: Enhanced pulse amplitude estimation for electronic warfare systems.
Authors: Lee, Yu‐Ri1 (AUTHOR), Kim, Dong‐Gyu1 (AUTHOR), Kim, Hyoung‐Nam1 (AUTHOR) hnkim@pusan.ac.kr
Source: IET Radar, Sonar & Navigation (Wiley-Blackwell). Jul2019, Vol. 13 Issue 7, p1123-1130. 8p.
Subjects: Signal sampling, Amplitude estimation, Blind source separation, Signal denoising, Time-of-arrival estimation
Abstract: In electronic warfare systems, the pulse amplitude (PA) of the received signals, which are emitted by enemies, has been used as one of the essential quantities for separating the mixed source signals. The PA is affected by time of arrival (TOA) and time of departure (TOD) estimation performance. Among methods of estimating TOA and TOD, there is a method of processing a signal in sample units in the time domain. This method has a disadvantage that it is completely affected by noise. This disadvantage can be overcome by using denoising techniques as in previous studies. However, conventional studies applying denoising are limited to the subject of signal detection, and there is no discussion on the problem of PA estimation due to the TOA and TOD estimation errors that occur after denoising. Therefore, we propose a power estimation‐based PA estimation method using shrinked PW to be robust for TOA and TOD errors in sample units after wavelet packet denoising with high‐order statistics. Simulation results show that the proposed PA estimation method has a smaller error at the same SNR when an unmodulated signal is received. Moreover, the proposed method can provide good performance even when a frequency modulated signal is received. [ABSTRACT FROM AUTHOR]
Copyright of IET Radar, Sonar & Navigation (Wiley-Blackwell) is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 183864429
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
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  Data: Enhanced pulse amplitude estimation for electronic warfare systems.
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  Data: <searchLink fieldCode="AR" term="%22Lee%2C+Yu‐Ri%22">Lee, Yu‐Ri</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kim%2C+Dong‐Gyu%22">Kim, Dong‐Gyu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kim%2C+Hyoung‐Nam%22">Kim, Hyoung‐Nam</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> hnkim@pusan.ac.kr</i>
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  Data: <searchLink fieldCode="DE" term="%22Signal+sampling%22">Signal sampling</searchLink><br /><searchLink fieldCode="DE" term="%22Amplitude+estimation%22">Amplitude estimation</searchLink><br /><searchLink fieldCode="DE" term="%22Blind+source+separation%22">Blind source separation</searchLink><br /><searchLink fieldCode="DE" term="%22Signal+denoising%22">Signal denoising</searchLink><br /><searchLink fieldCode="DE" term="%22Time-of-arrival+estimation%22">Time-of-arrival estimation</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: In electronic warfare systems, the pulse amplitude (PA) of the received signals, which are emitted by enemies, has been used as one of the essential quantities for separating the mixed source signals. The PA is affected by time of arrival (TOA) and time of departure (TOD) estimation performance. Among methods of estimating TOA and TOD, there is a method of processing a signal in sample units in the time domain. This method has a disadvantage that it is completely affected by noise. This disadvantage can be overcome by using denoising techniques as in previous studies. However, conventional studies applying denoising are limited to the subject of signal detection, and there is no discussion on the problem of PA estimation due to the TOA and TOD estimation errors that occur after denoising. Therefore, we propose a power estimation‐based PA estimation method using shrinked PW to be robust for TOA and TOD errors in sample units after wavelet packet denoising with high‐order statistics. Simulation results show that the proposed PA estimation method has a smaller error at the same SNR when an unmodulated signal is received. Moreover, the proposed method can provide good performance even when a frequency modulated signal is received. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of IET Radar, Sonar & Navigation (Wiley-Blackwell) is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1049/iet-rsn.2018.5415
    Languages:
      – Code: eng
        Text: English
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      Pagination:
        PageCount: 8
        StartPage: 1123
    Subjects:
      – SubjectFull: Signal sampling
        Type: general
      – SubjectFull: Amplitude estimation
        Type: general
      – SubjectFull: Blind source separation
        Type: general
      – SubjectFull: Signal denoising
        Type: general
      – SubjectFull: Time-of-arrival estimation
        Type: general
    Titles:
      – TitleFull: Enhanced pulse amplitude estimation for electronic warfare systems.
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            NameFull: Lee, Yu‐Ri
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            NameFull: Kim, Dong‐Gyu
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            NameFull: Kim, Hyoung‐Nam
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          Dates:
            – D: 01
              M: 07
              Text: Jul2019
              Type: published
              Y: 2019
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              Value: 17518784
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              Value: 13
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              Value: 7
          Titles:
            – TitleFull: IET Radar, Sonar & Navigation (Wiley-Blackwell)
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