Zobrazeno 1 - 10
of 198
pro vyhledávání: '"Young-seek Chung"'
Publikováno v:
Journal of Electromagnetic Engineering and Science, Vol 23, Iss 4, Pp 378-380 (2023)
The least square method (LSM) is a commonly used beamforming method. However, it limits the beamforming frequency bandwidth and is vulnerable to noise; therefore, diagonal loading is used to overcome these limitations. The diagonal loading proposed i
Externí odkaz:
https://doaj.org/article/3e16b786ca3148398ee7750cddd341b9
Publikováno v:
Journal of Electromagnetic Engineering and Science, Vol 21, Iss 4, Pp 261-269 (2021)
In this paper, a hybrid genetic algorithm (GA) is proposed for thinning a two-dimensional planar array by combining the conventional GA with moving least squares (MLS). This enhances the convergence rate and the global search performance. The MLS met
Externí odkaz:
https://doaj.org/article/36906092c8d944469c2994a485ee5379
Publikováno v:
Sensors, Vol 23, Iss 6, p 3278 (2023)
In recent times, due to the high operating frequency and low operating voltage of modern electronic devices, intended electromagnetic interference (IEMI) has been the cause of increasing damage. In particular, targets with precision electronics such
Externí odkaz:
https://doaj.org/article/f1eec51f0fba4f8cb8dae9d38271f1e6
Publikováno v:
IEEE Access, Vol 9, Pp 105724-105732 (2021)
An improved method for tracing electric flux lines in the vicinity of the overhead high voltage direct current (HVDC) transmission lines is developed by using parametric curves. Based on the geometric relation between the electric field vector and th
Externí odkaz:
https://doaj.org/article/6ec05bce47044b558f0f460bea213105
Publikováno v:
Applied Sciences, Vol 13, Iss 1, p 660 (2023)
This study proposes broadband direction (DOA) estimation through discrete Fourier transform (DFT) extrapolation. We used DFT extrapolation in the lower band and extended the sampled data to reduce the beam width in the spectral domain and improved th
Externí odkaz:
https://doaj.org/article/83b7834d9ee143f590d3d6bc82891113
Publikováno v:
Applied Sciences, Vol 10, Iss 7, p 2405 (2020)
In an electronic warfare environment, important equipment or facilities of the friendlies are placed in protective facilities to protect against external Electronic Attacks (EA). No matter how well shielded the facility is, some external electromagne
Externí odkaz:
https://doaj.org/article/d0f51141313e49569f97f42db36b1e25
Publikováno v:
International Journal of Antennas and Propagation, Vol 2015 (2015)
We propose a new algorithm to suppress the jammer signals and estimate the direction of arrival (DOA) of the signal of interest (SOI) for collocated MIMO radar by using the matrix pencil method (MPM) and the generalized likelihood ratio test (GLRT).
Externí odkaz:
https://doaj.org/article/bcf87b307dad40ce98b7d09207d55079
Publikováno v:
Journal of the Institute of Electronics and Information Engineers. 60:3-5
Publikováno v:
IEEE Access, Vol 9, Pp 105724-105732 (2021)
An improved method for tracing electric flux lines in the vicinity of the overhead high voltage direct current (HVDC) transmission lines is developed by using parametric curves. Based on the geometric relation between the electric field vector and th
Publikováno v:
Journal of Electrical Engineering & Technology. 15:1313-1322
In this paper, the Method of Moment (MoM) is used for the electric field analysis of a three-dimensional transmission line. Using this method, only the structure in which electric charges exist needs to be divided into elements. Therefore, in the cas