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Search: "[ keyword: Frequency ]" (13)

1. Unsupervised Learning-Based Threat Detection System Using Radio Frequency Signal Characteristic Data

Dae-kyeong Park, Woo-jin Lee, Byeong-jin Kim, Jae-yeon Lee, Vol. 25, No. 1, pp. 147-155, Feb. 2024
10.7472/jksii.2024.25.1.147
Keywords: Unmanned Aerial Vehicle, Radio Frequency, Signal Characteristic, Threat Detection, Unsupervised learning, Drone
2. Practical suggestions for development of『manned & unmanned complex combat performance plan』(drone operation)

Cheol-jung Kim, Bo-Ram Kim, Min-Youn Kim, Jae-Seok Lim, Vol. 25, No. 1, pp. 137-146, Feb. 2024
10.7472/jksii.2024.25.1.137
Keywords: Army TIGER, Drone, FPV, Frequency, Perspective
3. A Study on the High Reliability Audio Target Frequency Generator for Industry and Military

Changsik Park, Euntaek Han, Ikjae Kim, Dong-Kyoo Shin, Vol. 24, No. 3, pp. 9-26, Jun. 2023
10.7472/jksii.2023.24.3.9
Keywords: Frequency Synthesizer, Direct Frequency Synthesizer, Indirect Frequency Synthesizer, Railway Track Circuit
4. A Study on the Feature Point Extraction Methodology based on XML for Searching Hidden Vault Anti-Forensics Apps

Dae-gyu Kim, Chang-soo Kim, Vol. 23, No. 2, pp. 61-70, Apr. 2022
10.7472/jksii.2022.23.2.61
Keywords: Hidden Vault Application, Anti-forensics, XML, Text Mining, Keyword Frequency Analysis
5. A Study on the effect of high-performance frequency hopping radio system to next-generation aircraft and improvement Anti-jamming communication

Kwangyull Lee, Taeho Yong, Seungbeom Ahn, Kyeongsoo An, Indong Jang, Chulhee Han, Vol. 23, No. 1, pp. 113-124, Feb. 2022
10.7472/jksii.2022.23.1.113
Keywords: Next Generation aircraft, Jamming, anti-jamming, Radio Communication, Frequency Hopping, Aircraft modification
6. Interference Aware Fractional Frequency Reuse using Dynamic User Classification in Ultra-Dense HetNets

Ilhak Ban, Se-Jin Kim, Vol. 22, No. 5, pp. 1-8, Oct. 2021
10.7472/jksii.2021.22.5.1
Keywords: 5G, OFDMA, Heterogeneous Network, Fractional frequency reuse, interference management, dynamic user classification
7. Performance Analysis of Fractional Frequency Reuse Scheme for Enterprise Femtocell Networks

Se-Jin Kim, Vol. 19, No. 1, pp. 11-17, Feb. 2018
10.7472/jksii.2018.19.1.11
Keywords: Femtocell networks, Enterprise, Fractional frequency reuse, resource management
8. Enhancement of Fall-Detection Rate using Frequency Spectrum Pattern Matching

Suhwan Lee, Hanif Bhuiyan, Dongik Oh, Kyeong-Jin Oh, Yunyoung Nam, Myung-Duk Hong, Geun-Sik Jo, Vol. 18, No. 3, pp. 11-18, Jun. 2017
10.7472/jksii.2017.18.3.11
Keywords: Fall Detection, Acceleration measurement, Frequency spectrum, Pattern matching, Wikipedia, Semantic relation, Identification, Infobox Template, Information Extraction, Semi-structured data
9. A Computational Complexity Reduction Scheme for SLM Based OFDM Communication Systems

Soo-Bum Cho, Kwang-Min Hyun, Sang-Kyu Park, Vol. 13, No. 2, pp. 13-20, Apr. 2012
10.7472/jksii.2012.13.2.13
Keywords: Inverse Fast Fourier Transform (IFFT), Peak-to-Average Power Ratio (PAPR), Orthogonal Frequency Division Multiplexing (OFDM), Selected Mapping (SLM)
10. The effect of auction frequency and transaction volume on auction performance in internet auction

Jong-Han Park, Hyun-Woo Kim, Vol. 12, No. 5, pp. 159-170, Oct. 2011
Keywords: Internet auction, Auction frequency, Transaction volume, Auction performance

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