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다변수 모노펄스 추적 시스템에서 유전 알고리즘 기반 선형구간 확장
정진우,김재신,류영재,Jung, Jinwoo,Kim, Jaesin,Ryu, Young-Jae 한국군사과학기술학회 2017 한국군사과학기술학회지 Vol.20 No.2
In this paper, we consider a single-channel amplitude comparison monopulse system(SCACMS). The monopulse ratio curve(MR-C) of the SCACMS can be controlled by an amplitude difference between sum and different signal, a phase difference and the coefficient of the signal processor. We first propose the SCACMS with multiple variables, and then apply a genetic algorithm to optimize the multiple variables in terms of minimizing a root mean square error. The simulation results show that when three variables of the SCACMS are jointly optimized, the linear region of the MR-C can be extended approximately 187 % compared to that of two variables.
정진우,김재신,한덕찬,Jung, Jinwoo,Kim, Jaesin,Han, Duk-Chan 한국군사과학기술학회 2017 한국군사과학기술학회지 Vol.20 No.1
In this paper, we propose a new array antenna scheme which has an improved side lobe level (SLL) as well as a simplified feeding network and a high gain. The proposed array scheme is based on a non-uniformly excited sub-array. For analysis, we use an array factor of sub-array antenna. In the simulation results, the simulated SLL and gain provide more than 18.43 dB and 26.63 dBi, respectively. For the verification of the proposed design scheme, the prototype antenna with $16{\times}8$ radiating elements was designed by the proposed array scheme. The measured SLL and gain are more than 19.85 dB and 25.53 dBi, respectively. This measurement result indicates that the proposed array scheme is reasonable.