Antenna Radiation Efficiency of the Korean NDGPS Based on Radiation Power Measurements

Kim, Young Wan

doi:10.6109/jicce.2012.10.2.097

Journal of information and communication convergence engineerin

2012

DOI: 10.6109/jicce.2012.10.2.097

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Antenna Radiation Efficiency of the Korean NDGPS Based on Radiation Power Measurements

Young Wan Kim¹

Abstract: The differential global positioning system (DGPS) transmits a GPS enhancement signal using a top-loaded monopole antenna in the medium frequency range. The top-loaded antenna in the medium frequency band can attain a radiation efficiency on the order of 10%. The antenna ground plane characteristics affect the antenna radiation efficiency. To improve the radiation efficiency, it is necessary to install the antenna on a ground plane with large enough physical dimensions and good conductivity. The antenna radiati… Show more

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Cited by 4 publications

References 8 publications

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Modeling and Design of Medium-wave DGPS Monopole Antenna

Na¹,

Lee

Kim

2014

Journal of the Korea Institute of Information and Communication

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The experimental design method based-on the measured data in the several LF monopole antenna was used in MF monopole antenna design. The design technique is also utilized in MF DGPS antenna design. It is not possible to predict the antenna performance of the MF short-monopole antenna because of simple experimental antenna design. Furthermore, it is difficult to design and analyze the various wired short-monopole antenna. The antenna models for performance analysis of the DGPS antenna with the various wired short-monopole structure are proposed in this paper. Based on the proposed antenna models, also, the antenna performance and design data of the wired short-monopole antennas are presented. To evaluate the validity of the analyzed antenna models, the wired short-monopole antenna for 100 kHz are modeled and analyzed. The antenna performance of the wired short-monopole antenna are compared with those of the previously presented LF antenna performance. Based on the evaluation for proposed antenna analyzing models, the DGPS wired short-monopole antennas are modeled and analyzed.

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Modeling and Design of Medium-wave DGPS Monopole Antenna

Na¹,

Lee

Kim

2014

Journal of the Korea Institute of Information and Communication

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Analysis and measurement of service area of ocean-based DGPS reference station in Korea

Kim

2014

Journal of the Korea Institute of Information and Communication

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Based on the radio wave measurement of korean ocean-based DGPS by season, in this paper, the service coverages of ocean-based DGPS reference stations were analyzed according to the climate and season. The signal strengths and signal-to-noise ratios in the land service areas that are provided by ocean-based DGPS reference stations were measured. The ocean-based DGPS reference station except reference stations on the mountainous terrain and the low ground conductivity provide more than 68% service area in comparison with the designed land service coverage providing by the ocean-based DGPS reference stations. To provide the designed service area that is unrelated to a season, it is necessary to install and operate the DGPS reference station with good ground conductivity and high efficiency antenna. Also, the poor service regions which is generated by obstacles of electric wave on pathway can be resolved by the double service area providing by land-based DGPS reference stations.키워드 : 위성합법보정시스템, 해상 기준국, 내륙 기준국, DGPS 서비스 영역

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DGPS service analysis in the korean coastal ferry route

Kim¹

2014

Journal of the Korea Institute of Information and Communication

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Based on the DGPS radio wave measurement in the coast of the yellow-sea, south-sea and east-sea, the DGPS service regions in the korean coastal ferry route are analyzed in this paper. The impact of obstacles on the propagation due to the archipelago and island regions are measured and analyzed in the point of service region. The ocean-based DGPS reference stations provide the wide DGPS ocean service regions with signal strength more than 40 dB㎶/m and signal-to-noise ratio more than 10 dB. Based on the overlapping of the service regions between the DGPS reference stations, the DGPS services with good quality are provided in the coastal ferry route segments. In case of regions where the propagation obstacles are scattered, the increasingly good service can be provided under conditions of output power reinforcement and antenna efficiency enhancement.키워드 : 위성합법보정시스템, 연안 DGPS 서비스, 여객선 항로 DGPS 서비스, DGPS 전파측정

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Antenna Radiation Efficiency of the Korean NDGPS Based on Radiation Power Measurements

Cited by 4 publications

References 8 publications

Modeling and Design of Medium-wave DGPS Monopole Antenna

Modeling and Design of Medium-wave DGPS Monopole Antenna

Analysis and measurement of service area of ocean-based DGPS reference station in Korea

DGPS service analysis in the korean coastal ferry route

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