| Interference Analysis Between Fixed Wireless System and Radar Operating in VHF/UHF Bands with Geographic Information |
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Kyoung-Whoan Suh |
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Kangnam University |
| 지리정보에 기반한 VHF/UHF 대역의 고정무선시스템과 레이더 간의 간섭분석 |
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서경환 |
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강남대학교 |
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| Abstract |
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By virtue of Rec. ITU-R P.1546 and geography information system, interference analysis for the fixed wireless system and radar has been presented based upon the frequency-distance rules with minimum coupling loss, and a comprehensive methodology for assessing interoperability between systems was examined in terms of received signal, protection ratio, frequency dependent rejection. Also to find the antenna gain from a discrimination angle, a useful S-I plane was introduced based on signal and interference vectors derived from the real map with geographic information. To show some computational results, geography information on the map was taken for the given area, and field strength and path profile were illustrated for the radar and fixed wireless system operating at 2.7 GHz, for convenience. In addition the interference effect of receiver was also checked as a function of radar beam direction including protection ratio and frequency dependent rejection. The developed interference analysis can be actually applied to evaluate interoperability for wireless systems in the VHF and UHF bands. |
| Key Words:
Rec. ITU-R P.1546, Interference Analysis, Frequency Dependent Rejection, Protection Ratio, Geographic Information |
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