Calculating the Radar Cross Section of the Resistive Targets Using the Haar Wavelets

Hatamzadeh-Varmazyar, Saeed; Naser‐Moghadasi, Mohammad; Babolian, E.; Masouri, Zahra

doi:10.2528/pier08042504

Cited by 15 publications

(8 citation statements)

References 59 publications

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“…Through the known relationships between P F A and P D , which include signal-to-noise ratio and detector threshold for all the Swerling fluctuation types, FTIP is also related to the P D , hence it is possible to form a relationship between signal and data processing units. Also, the results can be easily extended to any other given expanded-Swerling or Non-Swerling fluctuation probability distribution [29][30][31][32]. Continuing with the TI process, any measurement extracted at the 3rd sampling time must comply with the constraints (and their derived forms) given in Appendix A.…”

Section: Ftip Analysis For the Rule-based Ti Scheme With Position Onlmentioning

confidence: 99%

Performance Evaluation of the Sequential Track Initiation Schemes With 3d Position and Doppler Velocity Measurements

Kural¹,

Arıkan²,

Arıkan³

et al. 2009

PIER B

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Abstract-This study investigates the effect of incorporating Doppler velocity measurements into the most commonly used sequential track initiation schemes, the rule and logic based schemes. The measurement set has been expanded from range and azimuth to include elevation and Doppler velocity. Unlike previous studies, elevation and Doppler measurements have also been included in the analytical evaluation of the false track initiation probability. Performance improvement obtained by employing Doppler measurements has been demonstrated through simulations in terms of false track initiation probability and true track initiation probability. Receiver Operating Characteristics and System Operating Characteristics have also been utilized in performance evaluation. Analytical derivations and simulations have revealed that using Doppler velocity measurements along with 3D position measurements while initiating tracks in clutter leads to significant decrease in false track initiation probability while providing an acceptable level of true track initiation probability. Simulation results have also shown that inclusion of Doppler measurements has reduced the required time for track initiation, resulting in faster track initiation.

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Section: Ftip Analysis For the Rule-based Ti Scheme With Position Onlmentioning

confidence: 99%

Performance Evaluation of the Sequential Track Initiation Schemes With 3d Position and Doppler Velocity Measurements

Kural¹,

Arıkan²,

Arıkan³

et al. 2009

PIER B

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“…Integral equation technique is a well-known approach for modeling of Electromagnetics problems and many of such problems are modeled by Fredholm integral equations of the first kind [1][2][3][4][5][6]. These equations are in general ill-posed.…”

Section: Introductionmentioning

confidence: 99%

Applying integral equation modeling technique in determination of charge distribution on conducting structures

Masouri¹,

Hatamzadeh-Varmazyar²

2013

Advanced Computational Techniques in Electromagnetics

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We use, in this article, the integral equation technique for modeling the problem of determination of charge distribution on conducting structures. Such problems may be modeled by Fredholm integral equations and, in general, have no analytical solution. Hence, an appropriate computational approach should be used for obtaining the approximate solutions. For this purpose, an effective collocation method is used and two conducting structures are analyzed by it. Numerical results are given to illustrate the computational efficiency of the method.

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“…The first harmonic frequency can be obtained from a simple and traditional spectral analysis. For the mother wavelet function, a discrete Meyer wavelet function was adopted because it is known to be appropriate for harmonic analysis [19,20]. With the WD prior to the EMD, there can be less possibility that each extracted IMF has multiple frequency components because the WD limits the frequency band larger than the first harmonic frequency.…”

Section: Modified Hhtmentioning

confidence: 99%

Modified Hilbert-Huang Transform and Its Application to Measured Micro Doppler Signatures From Realistic Jet Engine Models

Park¹,

Lim²,

Myung³

2012

PIER

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Abstract-Joint time-frequency analysis (JTFA) is applied to micro Doppler signatures generated by jet engine modulation (JEM) effect using a modified Hilbert-Huang transform (HHT). The modified HHT is developed to improve the JTFA results of measured JEM signals. Wavelet decomposition (WD) with Meyer wavelet function is considered as a supplementary process of the HHT. The modified HHT examines a signature obtained from simulation of a jet engine CAD model, and is then applied to the signatures obtained from measurement of two realistic jet engine models. The modified HHT gives more improved JTFA results of the measured JEM signals than those from the simple short-time Fourier transform -(STFT) based analysis. The modified HHT-based JTFA approach is expected to be significantly useful for enabling high-quality radar target recognition in a real environment by complementing other traditional analyses.

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Calculating the Radar Cross Section of the Resistive Targets Using the Haar Wavelets

Cited by 15 publications

References 59 publications

Performance Evaluation of the Sequential Track Initiation Schemes With 3d Position and Doppler Velocity Measurements

Performance Evaluation of the Sequential Track Initiation Schemes With 3d Position and Doppler Velocity Measurements

Applying integral equation modeling technique in determination of charge distribution on conducting structures

Modified Hilbert-Huang Transform and Its Application to Measured Micro Doppler Signatures From Realistic Jet Engine Models

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