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All Journal International Journal of Informatics and Communication Technology (IJ-ICT) Jurnal EECCIS SITEKIN: Jurnal Sains, Teknologi dan Industri ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Jurnal Teknologi dan Sistem Komputer Jurnal ELTIKOM : Jurnal Teknik Elektro, Teknologi Informasi dan Komputer JOURNAL OF INFORMATICS AND TELECOMMUNICATION ENGINEERING Jurnal Elektronika dan Telekomunikasi Multitek Indonesia : Jurnal Ilmiah TELKA - Telekomunikasi, Elektronika, Komputasi dan Kontrol Jurnal Pengabdian Masyarakat Borneo Aviation Electronics, Information Technology, Telecommunications, Electricals, Controls (AVITEC) IJITEE (International Journal of Information Technology and Electrical Engineering) Indonesian Journal of Electrical Engineering and Computer Science Elektrika Borneo JESCEE- Journal of Emerging Supply Chain, Clean Energy, and Process Engineering Jurnal INFOTEL
Syahfrizal Tahcfulloh
Universitas Borneo Tarakan
Aerospace Engineering Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences Other

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Combined Barker-M-Sequence Coded LFM for High-Performance Subarray-MIMO Radar Applications Iqbal, Akhmad; Tahcfulloh, Syahfrizal; Antonius, Antonius; Juliannanda, Rizkyandi; Nurrahmansyah, Arya
JOURNAL OF INFORMATICS AND TELECOMMUNICATION ENGINEERING Vol. 9 No. 2 (2026): Issues January 2026
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jite.v9i2.15837

Abstract

Subarray-Multiple-Input Multiple-Output (SMIMO) radar is an advanced technology that integrates the advantages of phased-array and MIMO radars to enhance target detection resolution. A key challenge in SMIMO implementation lies in improving velocity resolution without compromising spectral efficiency, while maintaining accurate target detection capability under high sidelobe levels and inter-channel interference. This study proposes a novel approach—Combined Barker-M-Sequence Coded LFM—in which the LFM signal is phase-modulated using a hybrid code formed by concatenating a Barker sequence (length 11) and an M-sequence (length 7). Simulation results show that the proposed signal achieves a Peak Sidelobe Ratio (PSLR) of −20.83 dB, significantly outperforming LFM-Barker (−8.45 dB) and LFM-M-sequence (−16.3 dB). It also delivers a velocity resolution of 0.95 m/s and a range resolution of 225 m, representing a 38% improvement over standard LFM. Moreover, under SNR = −5 dB, the system achieves a SINR gain of 4.7 dB relative to LFM-M-sequence. This approach enables more efficient waveform utilization in modern radar applications—such as air surveillance, military defense, and autonomous vehicles—particularly in challenging environments characterized by low SNR, multipath propagation, and high clutter.
Co-Authors Abdul Muis Prasetia, Abdul Muis Antonius Antonius Antonius Antonius Ashar Ashar Budiman, Achmad Eka Riskayadi Huda, Abil Iqbal, Akhmad Juliannanda, Rizkyandi Kristianto Pasepang Mado, Ismit Mizar Ahmad Maulana Muhammad Jeki Muttaqin Hardiwansyah Noviyansyah, Tri Nurrahmansyah, Arya Patria Julianto Petrick Petrick PUTRA, ILHAM TIARA RAMDANSYAH, RANDI Risky, Dwi Sabaria, Sabaria SAFARIA, NUR Said, Fitriani Sapriansa Sapriansa Sartika, Linda Selviyani, Selviyani Sugeng Riyanto Sultan Mahdi Sumardi . Syamsiar, Syamsiar