GDL

Journal from gdlhub / 2021-09-04 15:47:51
Oleh : Eltahir Idris Eltahir Mohamed, Elfatih A. A. Elsheikh, A. Awad Babiker, Islam Md. Rafiqul, Mohamad Hadi Habaebi, Aisha H. Abdulla, Elessaid Saad, Telkomnika
Dibuat : 2021-02-01, dengan 1 file

Keyword : complex permittivity, dust storm attenuation, humidity, microwave propagation, visibility
Url : http://journal.uad.ac.id/index.php/TELKOMNIKA/article/view/18148
Sumber pengambilan dokumen : Web

Several models were proposed to predict the attenuation of microwave signals due to sand and dust storms. Those models were developed based on theoretical assumptions like Rayleigh approximation, Mie equations or numerical methods. This paper presents a comparison between attenuation predicted by three different theoretical models with measured attenuation at 14 GHz. Dielectric constant of dust particles is one of the important parameter in prediction models. This constant is estimated from measured dust samples and is utilized for predictions. All models are found largely underestimating the measurement. Humidity is also monitored and has been observed higher during dust storm. Hence dielectric constants are re-estimated with relative humidity conditions using available conversion model. The prediction has a great impact of humidity and predicted attenuations are found much higher in humid than dry dust condition. However, all models underestimate the measurement even considering 100% of relative humidity. Hence it is recommended to investigate the models by considering humidity and other environmental factors that change during dust storm.

Beri Komentar ?#(0) | Bookmark

Properti	Nilai Properti
ID Publisher	gdlhub
Organisasi	Telkomnika
Nama Kontak	Herti Yani, S.Kom
Alamat	Jln. Jenderal Sudirman
Kota	Jambi
Daerah	Jambi
Negara	Indonesia
Telepon	0741-35095
Fax	0741-35093
E-mail Administrator	elibrarystikom@gmail.com
E-mail CKO	elibrarystikom@gmail.com