Detection of Rain/Cloud Pixels by Ka-band AltiKa Altimeter over the Tropical Region: Development of a Rain/Cloud Flag Algorithm and its Validation

2015 ◽  
Vol 38 (sup1) ◽  
pp. 86-106 ◽  
Author(s):  
Partha Roy ◽  
Sanjay Sharma ◽  
Rakesh Mohan Gairola
Keyword(s):  
Tropical Region ◽  
Ka Band ◽  
Rain Cloud

scholarly journals On-The-Move Measurement Analysis for Ka-Band High Throughput Satellite and LiFi Communication Networks in Tropical Region

IEEE Access ◽  
2021 ◽  
pp. 1-1
Author(s):  
P.M. Kalaivaanan ◽  
Aduwati Sali ◽  
Raja Syamsul Azmir Raja Abdullah ◽  
Syamsuri Yaakob ◽  
Mandeep Jit Singh ◽  
...  
Keyword(s):  
Communication Networks ◽  
High Throughput ◽  
Tropical Region ◽  
Ka Band ◽  
Measurement Analysis

scholarly journals Spectral characteristics of satellite links at ka band in the southern tropical region of India

2017 ◽  
Vol 7 (1.1) ◽  
pp. 631
Author(s):  
Sravya Velaga ◽  
Jagadeesh Korrapati ◽  
Chaithanya Krishna B ◽  
Vandana Matti ◽  
K Ch. Sri Kavya ◽  
...  
Keyword(s):  
High Frequency ◽  
Spectral Characteristics ◽  
Low Frequency ◽  
Radiowave Propagation ◽  
Tropical Region ◽  
Multimedia Services ◽  
System Availability ◽  
Ka Band ◽  
Frequency Bands ◽  
Satellite Links

The objective of this study was to perform a spectral analysis of the Ka band propagation channel. Now a day, because of the expanding interest of the end users for multimedia services which require vast bandwidth, and because of the immersion of low frequency bands, for example, L, S, C bands, and Ku band in close future, satellite media transmission systems are moving to higher frequency bands. In such high frequency bands, the presence of the atmosphere strongly affects radiowave propagation and attenuation effects become so severe that system availability would not be sufficient if systems were designed in a conventional way with a static propagation margin. 

Statistical Study of Cloud Attenuation on Ka-Band Satellite Signal in Tropical Region

2017 ◽  
Vol 16 ◽  
pp. 2018-2021 ◽  
Author(s):  
Feng Yuan ◽  
Yee Hui Lee ◽  
Yu Song Meng ◽  
Jun Xiang Yeo ◽  
Jin Teong Ong
Keyword(s):  
Statistical Study ◽  
Tropical Region ◽  
Ka Band ◽  
Cloud Attenuation ◽  
Satellite Signal

Rain Attenuation Prediction Model Assessment on 3-Year Ka-Band Signal of MEASAT-5 at Tropical Region Using 7.3-m Antenna

MAPAN ◽  
2019 ◽  
Vol 35 (2) ◽  
pp. 201-212
Author(s):  
Fazdliana Samat ◽  
Mandeep Singh Jit Singh ◽  
Thulasidasan Sountharapandian
Keyword(s):  
Prediction Model ◽  
Rain Attenuation ◽  
Tropical Region ◽  
Model Assessment ◽  
Ka Band ◽  
Band Signal

scholarly journals Characterization of Ka-band Radar Observations for Different Rain Types over Akure, Nigeria

2020 ◽  
pp. 9-19
Author(s):  
Joseph S. Ojo ◽  
Babatunde A. Alabi ◽  
Moses O. Ajewole
Keyword(s):  
Vertical Profile ◽  
Rain Rate ◽  
Quantitative Estimation ◽  
Radiowave Propagation ◽  
Propagation Path ◽  
Tropical Region ◽  
Fall Velocity ◽  
Ka Band ◽  
Stratiform Rain ◽  
Bright Band

Radar is a unique tool that can measure precipitation parameters over a large aerial coverage. Its application spans over study of climate change and radiowave propagation. Inter-relation between the rain parameters can also be derived with the height of radar especially on vertical profiling or aloft ground level. Hence effect of precipitation parameters can be assessed along the satellite propagation path with the help of space-borne radar. Satellite communication links operating at frequencies above 10 GHz are usually affected by hydrometeors especially rainfall. These effects are expected to be quite severe in the tropical region like Akure due to the nature of precipitation which is mainly convective and stratiform rain type. Therefore, information on vertical rain structure is important for precise quantitative estimation of precipitation. Thus, the focus of this work is to characterize the vertical profile of rain structures using vertically-pointing Ka-band Micro Rain Radar (MRR) at Akure, Nigeria. This has been achieved by using 2-year (2013 and 2014) data of rain parameters namely: rain rate, reflectivity, liquid water content and fall velocity obtained from MRR to determine the bright band heights under different rain types and its implications on satellite and radio waves propagation in this region. Rain rate in this region has been categorized into four groups namely: 0.02- 0.2 mm/h, 0.2- 2 mm/h, 2-40 mm/h, and 40 - 200 mm/h. The very low rain rate group is related to the stratiform rain types whereas highest rain rate groups are for the convective rain type. Study shows that parameters that are much associated with rain attained peak value at different height depending on the period of the year. The vertical profile of Z shows peak around 3 to 4.2 km height. The peak region is associated with the bright band height and contribution to the melting layer. This study revealed that the occurrence of bright band heights varies with rain types. The overall results will be useful for determining rain height needed for the prediction of rain attenuation in this region.

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