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Characterization of rainfall rate, Ku-band rain attenuation and tropospheric scintillation at indonesian tropical cities
Suryana J.a, Sastrokusumo U.a, Sugihartono S.a, Tanaka K.b, Igarashi K.b, Iida M.c
a STEI ITB, Indonesia
b NICT, Japan
c ARIB, Japan
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]In this paper, we present our contribution of Rainfall rate and Ku-band rain attenuation measurements at Bandung. This measured data is an important complement to several of previous recorded data from other tropical cities in Indonesia for characterizing the Ku-band Satellite Propagation in Tropical area. The two years of our experiment results indicate that the measured R 0.01 rainfall rate at Bandung is 120 mm/h and the measured A 0.01 rain attenuation is 17 dB. Therefore, the P region of ITU-R model is over estimated for Bandung, and we suggest that Q-region of ITU-R model is more suitable for Bandung. Another previous measurements which had performed in Indonesia confirmed with our conclusions that some cities in Indonesia have not only P-region of ITU-R model (such as Padang, Bengkulu an Makassar), but also N (Jayapura) and Q-region (Surabaya). And on their Rec. 837-3 2001, ITU-R has confirmed that almost Indonesian cities have rainfall rate 100-120 mm/h. Based on 10 samples rainfall rate in Indonesian Archipelago, we have developed New Prediction Model of R0.01 value for Indonesian cities. Relating to the rain attenuation statistics, we have found out, that the DAH Model is valid for Indonesia. We also have found out that if Bandung is modelled by Q-region of ITU-R, we should include the wetting antenna effects as the correction factor to the the ITU-R mo del for confirming with the measured A0.01 rain attenuation. Concerning to the tropospheric scintillation, we have noted that in a tropical region such as Indonesia, the magnitude of the Ku-band scintillation is seasonal dependence, reaching variance 0.4 dB (maximum) in rainy season and 0.2 dB (minimum) in dry season.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Correction factors,Ku-band satellite,Prediction model,Rain attenuation,Rain attenuation measurement,Seasonal dependence,Tropical regions,Tropospheric scintillation[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]