Results 31 to 40 of about 993,230 (345)

Kajian implementasi radio siaran digital di Indonesia [Study of digital radio broadcasting implementation in Indonesia]

Buletin Pos dan Telekomunikasi: Media Komunikasi Ilmiah, 2015
Peraturan Menteri Komunikasi dan Informatika RI nomor 21 tahun 2009 tentang  Standar Penyiaran Digital Untuk Penyiaran Radio pada Pita VHF di Indonesia menyatakan bahwa dalam rangka mengatasi permasalahan penggunaan frekuensi VHF Band II untuk penyiaran ...
Amry Daulat Gultom
doaj   +1 more source

Research on SAR data integrated processing methodology oriented on earth environment factor inversions

International Journal of Digital Earth, 2017
As an important advanced technique in the field of Earth observations, Synthetic Aperture Radar (SAR) plays a key role in the study of global environmental change, resources exploration, disaster mitigation, urban environments, and even lunar exploration.
Huadong Guo, Jie Chen, Xinwu Li, Lu Zhang, Wenjin Wu, Huiying Liu, Kai Wang, Zhuo Li, Xinwei Gu, Qingrong Hu, Xinmin Wang, Jun Li, Chunming Han, Junjie Zhu, Guozhuang Shen, Guang Liu, Wenxue Fu, Zhongchang Sun, Xiaoyang Wen   +18 more
doaj   +1 more source

Beamforming Techniques for Large-N Aperture Arrays

, 2010
Beamforming is central to the processing function of all phased arrays and becomes particularly challenging with a large number of antenna element (e.g. >100,000).
Adami, K Zarb, de Vaate, J. G. Bij, Faulkner, A J, Kant, G. W., Pickard, P.   +4 more
core   +1 more source

Clustering of Radio Galaxies and Quasars [PDF]

, 2009
We compute the cross-correlation between a sample of 14,000 radio-loud AGN (RLAGN) with redshifts between 0.4 and 0.8 selected from the Sloan Digital Sky Survey and a reference sample of 1.2 million luminous red galaxies in the same redshift range.
Antonucci, Barr, Barthel, Barthel, Becker, Best, Best, Best, Blanton, Boroson, Bower, Bruzual, Böhringer, Cannon, Cheng Li, Coil, Collister, Collister, Condon, Croom, Croton, Davis, DaÂngela, Donoso, Dunlop, E. Donoso, Fabian, Fanaroff, Franceschini, G. Kauffmann, Hamilton, Hardcastle, Hardcastle, Hardcastle, Heckman, Hickox, Hill, Hine, Ho, Häring, Jackson, Kauffmann, Kauffmann, Kellermann, Lacy, Laing, Lawrence, Ledlow, Li, Li, Li, Mandelbaum, McNamara, Merloni, Metacalf, Miley, P. N. Best, Padmanabhan, Peebles, Pentericci, Porciani, Prestage, Richards, Schneider, Shen, Shen, Sheth, Simpson, Smith, Snellen, Somerville, Stocke, Stoughton, T. M. Heckman, Urry, Wake, Wold, Yates, York   +78 more
core   +1 more source

Studi Perencanaan Migrasi Sistem Digital Oleh Penyelenggara Radio Trunking di Indonesia

Buletin Pos dan Telekomunikasi: Media Komunikasi Ilmiah, 2013
Sistem Radio Trunking merupakan sistem radio yang berbasis repeater untuk satu atau lebih menara dengan menggunakan lebih dari satu frekuensi, dimana pengguna secara semi-privat dapat memiliki kanal tersendiri untuk melakukan pembicaraan secara grup.
Awangga Febian Surya Admaja
doaj   +1 more source

Double Lobed Radio Quasars from the Sloan Digital Sky Survey [PDF]

, 2005
We have combined a sample of 44984 quasars, selected from the Sloan Digital Sky Survey (SDSS) Data Release 3, with the FIRST radio survey. Using a novel technique where the optical quasar position is matched to the complete radio environment within 450",
Antonucci R., Best P. N., Fanaroff B. L., Fanti C., Francis P. J., Hoekstra H., Mackay C. D., Mantovani F., Nilsson K., R. H. Becker, R. L. White, Rees M. J., W. H. de Vries   +12 more
core   +3 more sources

AI-Managed Cognitive Radio Digitizers

IEEE Circuits and Systems Magazine, 2022
Peer ...
openaire   +3 more sources

Low power all-digital radio-over-fiber transmission for 28-GHz band using parallel electro-absorption modulators [PDF]

, 2020
We present a low-power all-digital radio-over-fiber transmitter for beyond 28-GHz using sigma-delta modulation, a 140mW NRZ driver and parallel electro-absorption modulators. 5.25Gb/s (2.625Gb/s) 64-QAM is transported over 10-km SSMF at 1560nm with 7.6% (
Bauwelinck, Johan, Bogaert, Laurens, Breyne, Laurens, Declercq, J, Demeester, Piet, Lambrecht, Joris, Li, Haolin, Ossieur, Peter, Ramon, Hannes, Torfs, Guy, Van Kerrebrouck, Joris, Wu, Chia-Yi, Yin, Xin   +12 more
core   +2 more sources

Uporedni pregled standarda za digitalne tranking sisteme funkcionalnih mobilnih radio-veza / Comparative analysis of the standards for digital trunked mobile radio systems [PDF]

Vojnotehnički Glasnik, 2002
Za izgradnju funkcionalnih sistema mobilnih radio-veza danas se koriste tranking sistemi analognih i digitalnih mobilnih radio-veza. Zbog niza prednosti, tranking sistemi digitalnih mobilnih radio-veza sve vise potiskuju analogne tranking sisteme ...
Slađan Svrzić , Dragan Ćosović
doaj   +1 more source

Digital receivers for low-frequency radio telescopes UTR-2, URAN, GURT

, 2016
This paper describes digital radio astronomical receivers used for decameter and meter wavelength observations. This paper describes digital radio astronomical receivers used for decameter and meter wavelength observations.
Bortsov, V., Brazhenko, A., Bubnov, I., Bulakh, E., Coffre, A., Denis, L., Dorovskyy, V., Fischer, G., Grießmeier, J. -M., Ivantyshin, O., Kalinichenko, N., Koliadin, V., Konovalenko, A., Koshovyy, V., Koval, A., Kozhin, R., Kravtsov, A., Kravtsov, I., Kuzin, A., Kvasov, G., Lecacheux, A., Lisachenko, V., Litvinenko, G., Lozinsky, A., Melnik, V., Mukha, D., Mylostna, K., Panchenko, M., Plakhov, M., Pylaev, O., Reznichenko, A., Rucker, H. O., Ryabov, V., Shepelev, V., Shevchuk, N., Shevtsova, A., Sidorchuk, M., Skoryk, A., Stanislavsky, A., Stepkin, S., Ulyanov, O., Vashchishin, R., Vasilenko, N., Vasilyev, A., Vasylieva, I., Vasylkivskyi, Y., Vavriv, D., Vinogradov, V., Volvach, Y., Yerin, S., Zakharenko, V., Zarka, P.   +51 more
core   +2 more sources