그림 1. 신호정보 수집 위성 시스템 구조 Fig. 1 Architecture of SIGINT satellite system
그림 2. 첫 번째 시나리오의 MVDR 빔형성기에 대한 출력 SINR Fig. 2 Output SINR of the MVDR beamformer for the first scenario
그림 3. 첫 번째 시나리오의 MMSE 빔형성기에 대한 출력 SINR Fig. 3 Output SINR of the MMSE beamformer for the first scenario
그림 4. 두 번째 시나리오의 MVDR 빔형성기에 대한 출력 SINR Fig. 4 Output SINR of the MVDR beamformer for the second scenario
그림 5. 두 번째 시나리오의 MMSE 빔형성기에 대한 출력 SINR Fig. 5 Output SINR of the MMSE beamformer for the second scenario
참고문헌
- S. Kwon, D. Kim, S. Moon, J. Lee, S. Bae, H. Kim, Y. Lim, C. Kim, and I. Hwang, "3D Localization for a Launch Vehicle using Virtual TOA, AOA, and TDOA," J. of the Institute of Electronics and Information Engineers, vol. 55, no. 1, 2018, pp. 3-14. https://doi.org/10.5573/ieie.2018.55.1.3
- S. Hwang and J. J. Shynk, "Multicomponent Receiver Architectures for GPS Interference Suppression," IEEE Trans. Aerospace and Electronic Systems, vol. 42, no. 2, 2006, pp. 489-502. https://doi.org/10.1109/TAES.2006.1642566
- J. Mun, M. Hwang, and S. Hwang, "Performance Evaluation of Satellite System Based on Transmission Beamformer," J. of the Korea Institute of Electronics Communications Sciences, vol. 13, no. 4, 2018, pp. 713-720.
- Y. Choi, "MUSIC-Based Direction Finding through Simple Signal Subspace Estimation," J. of the Institute of Electronics and Information Engineers, vol. 48, no. 4, 2011, pp. 153-159.
- P. Stoica, P. Handel, and T. Soderstrom, "Study of Capon method for array signal processing," J. of Circuits, Systems and Signal Processing, vol. 14, no. 6, 1995, pp. 749-770. https://doi.org/10.1007/BF01204683
- Y. Choi, "Efficient DOA Estimation of Coherent Signals Using ESPRIT," J. of the Institute of Electronics and Information Engineers, vol. 49, no. 9, 2012, pp. 164-171. https://doi.org/10.5573/ieek.2012.49.9.164
- S. Hwang, "Output SINR Analysis of GPS Adaptive Interference Canceler Based on Modified Despreader," J. of the Korea Institute of Electronics Communications Sciences, vol. 9, no. 2, 2014, pp. 195-202. https://doi.org/10.13067/JKIECS.2014.9.2.195
- C. Hong, C. Kim, S. Whang, and J. Yang, "A Time-Domain GSC Algorithm Based on Wavelet Filter," J. of the Korea Institute of Communications and Information Sciences, vol. 35, no. 11, 2010, pp. 948-956.
- K. Lee, "A Study on Overlapped Adaptive Subarray Beamforming LCMV Method for Decrease Side Lobe Level" J. of the Korean Institute of Information Technology, vol. 9, no. 4, 2011, pp. 57-62.
- S. Serbetli and A. Yener, "Transceiver Optimization for Multiuser MIMO Systems," IEEE Trans. Signal processing, vol. 52, no. 1, 2004, pp. 214-226. https://doi.org/10.1109/TSP.2003.819988
- H. Yang and T. L. Marzetta, "Performance of Conjugate and Zero-Forcing Beamforming in Large-Scale Antenna Systems," IEEE J. on Selected Areas in Communications, vol. 31, no. 2, 2013, pp. 172-179. https://doi.org/10.1109/JSAC.2013.130206
- J. Mun and S. Hwang, "Input Signal Model Analysis for Adaptive Beamformer," J. of the Korea Institute of Electronics Communications Sciences, vol. 12, no. 3, 2017, pp. 433-438.