Improvement of Performance Analysis of Amplitude-Comparison Monopulse Algorithm in the Presence of an Additive Noise

Ham, Hyeong-Woo; Lee, Joon-Ho

doi:10.3390/electronics10212649

Cited by 3 publications

(3 citation statements)

References 9 publications

(28 reference statements)

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“…Monopulse antenna technology can be employed to obtain the position and angle of a target using a single pulse. There have been many research efforts on the subject of accurate target or signal angle estimation using monopulse techniques, which can be called "the monopulse theory" [1][2][3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Conceptual Design of a Semi-Dual Polarized Monopulse Antenna by Computer Simulation

et al. 2023

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Presented in this paper is a conceptual design by computer simulation of a monopulse reflector antenna with dual-circularly polarized sum patterns and linearly polarized azimuth and elevation difference patterns, which can be called a semi-dual polarized antenna. The proposed antenna consists of a five-element monopulse feed and a prime-focus parabolic reflector. The novelty of the proposed antenna is a monopulse feed consisting of a dual-circularly polarized square waveguide sum channel radiator and linearly polarized rectangular waveguide azimuth and elevation difference channel radiators. The separation of dual circular polarization is realized by a septum polarizer. The difference pattern is obtained by feeding two rectangular waveguides in opposite directions using a coaxial probe. The proposed monopulse feed geometry requires only two power combiners for a monopulse comparator network while providing dual-polarized performance comparable to the full dual-polarized sum and difference channel monopulse scheme. The concept of the proposed antenna is shown in a conceptual design by computer simulation. The monopulse feed is designed first, and then combined with a parabolic reflector. The designed monopulse reflector antenna operates at 14.5–16.0 GHz, and shows excellent sum and difference pattern characteristics: 36.1–36.7 dBc sum channel directivity with 0.65 dB boresight axial ratio and 32.6–32.9 dBi difference channel directivity with 1.56–1.66° crossover angle.

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Section: Introductionmentioning

confidence: 99%

Conceptual Design of a Semi-Dual Polarized Monopulse Antenna by Computer Simulation

et al. 2023

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Section: Introductionmentioning

confidence: 99%

“…In previous studies [14,15], the MSE of the ACM direction-of-arrival (DOA) estimated angle was expressed as an analytic expression using the Taylor approximation and was compared with the Monte Carlo method. The analytical expressions proposed in [14,15] are highly computationally efficient. The final expressions quantifying the MSE of the monopulse algorithm in the previous studies are very long and complicated and are not intuitive.…”

Section: Introductionmentioning

confidence: 99%

Numerical Integration-Based Performance Analysis of Amplitude-Comparison Monopulse Algorithm in Correlated Noise

Ham

Lee

2022

Electronics

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In this paper, the performance analysis of the amplitude-comparison monopulse (ACM) algorithm under a correlated noise effect is dealt with. The noise received by a monopulse antenna is caused by various sources, such as jamming, multipath, clutter, and thermal noise. The noise variables caused by these noise sources may be correlated with each other when received by the antenna elements. We explicitly analyzed the angle estimation performance of the monopulse algorithm when a correlated noise is received by deriving the probability density function (PDF) of the channel noise variables. In this process, correlation coefficients between noise variables received by antenna elements are defined, and variance and correlation coefficients of channel noise variables are derived. The performance of the angle estimation is analyzed by calculating the root mean square error (RMSE) for various variances and correlation coefficients of the received noise variables. The expectation operation required for calculating the RMSE is performed via numerical integration. Consequently, the analytically derived RMSE results show excellent agreements with the Monte Carlo simulation-based RMSE result, and it is confirmed that the RMSE decreases as the correlation coefficient between the received noise variables increases. When the SNR is high and on-axis, the RMSE decreases by 20% whenever the correlation coefficient between the reception noise variables increases by 0.2.

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Implementation of a High-Precision Secondary Radar Tracking Algorithm Based on Single-Pulse Tracking Technology

Zhou,

Yang,

et al. 2023

2023 3rd International Conference on Robotics, Automation and Intelligent Control (ICRAIC)

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Improvement of Performance Analysis of Amplitude-Comparison Monopulse Algorithm in the Presence of an Additive Noise

Cited by 3 publications

References 9 publications

Conceptual Design of a Semi-Dual Polarized Monopulse Antenna by Computer Simulation

Conceptual Design of a Semi-Dual Polarized Monopulse Antenna by Computer Simulation

Numerical Integration-Based Performance Analysis of Amplitude-Comparison Monopulse Algorithm in Correlated Noise

Implementation of a High-Precision Secondary Radar Tracking Algorithm Based on Single-Pulse Tracking Technology

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