Browsing by Author "Topçu, Satılmış"
Now showing items 1-20 of 28
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A 128-bit microprocessor compatible programmable correlator chip for use in synchronous communication
Ungan, İ. Enis; Topçu, Satılmış; Atalar, Abdullah (IEEE, 1989)A single-chip microprocessor-compatible 128-b correlator is designed and implemented in a 3-μm M2CMOS process. Full-custom design techniques are applied to achieve the best tradeoff among chip size, speed, and power ... -
Application of fast methods to large scale rough surface scattering and propagation problems
Altıntaş, Ayhan; Ertürk, Vakur B.; Tunç, Celal; Topçu, Satılmış (2006) -
Comparison of various propagation models on real terrain: difficulties and remedies
Altıntaş, Ayhan; Aksun, İrşadi; Topçu, Satılmış; Köymen, Hayrettin; Yurchenko, V.; Yetginer, Emre; Yılmaz, Özgür (2000) -
Computer aided frequency planning for the radio and TV broadcasts
Altıntaş, Ayhan; Ocalı, O.; Topçu, Satılmış; Tanyer, S. G.; Köymen, Hayrettin (Institute of Electrical and Electronics Engineers, 1996-06)The frequency planning of the VHF and UHF broadcasts in Turkey is described. This planning is done with the aid of computer databases and digital terrain map. The frequency offset is applied whenever applicable to increase ... -
Design and testing of a microprocessor compatible 128-bit correlator chip
Topçu, Satılmış (Bilkent University, 1989) -
Design of an emergency PMR network based on CDMA 450 in İstanbul metropolitan region
Kızılırmak, Çağlar; Topçu, Satılmış; Köymen, Hayrettin (TEHOSS, 2006)In this work, a complete design of PMR (Professional Mobile Radio) network based on CDMA 450 in ˙Istanbul metropolitan region is presented. Coverage and capacity analysis are performed by the developed simulation software ... -
The effect of terrain roughness in the microwave line-of-sight multipath fading estimation based on Rec. ITU-R P.530-15
Göktas, Polat; Altıntaş, Ayhan; Topçu, Satılmış; Karasan, Ezhan (IEEE, 2014-08)Multipath fading is an important constraint on the prediction of path loss for terrestrial line-of-sight microwave links. The International Telecommunication Union - Radiocommunication (ITU-R) Rec. P.530 [1] is one of the ... -
Feasibility study of installation of solar panels on a high power HF antenna land
Ali, Abdul; Özbey, Burak; Topçu, Satılmış; Altıntaş, Ayhan (John Wiley and Sons Inc., 2016)In HF broadcasting, the transmitters are typically very powerful. In the case of Turkish Radio and Television (TRT), total transmission average power may reach up to 5 MW. Therefore, it is natural to utilize solar panels ... -
Feasibility study of installation of solar panels on a high power HF antenna terrain
Abdul, Ali; Özbey, Burak; Topçu, Satılmış; Altıntaş, Ayhan (EMC Türkiye, 2015) -
Geniş ölçekli pürüzlü yüzeylerden saçınım ve yayınım problemleri için hızlı yöntemler ve uygulamaları
Ertürk, Vakur B.; Tunç, Celal; Topçu, Satılmış; Altıntaş, Ayhan (2006) -
A GIS-Aided frequency planning tool for terrestrial broadcasting and land mobile services
Topçu, Satılmış; Köymen, Hayrettin; Altıntaş, Ayhan; Aksun, İrşadi (Springer, Dordrecht, 2002)Radio provides an important technology for emergency preparedness and emergency response. It not only offers rapid communication for emergency workers within the disaster area, but also affords the means of disseminating ... -
GIS-Aided propagation prediction study for broadcast and telecommunication services
Altıntaş, Ayhan; Aksun, İrşadi; O., Balta; Köymen, Hayrettin; Topçu, Satılmış; Yurchenko, V. (2000) -
Karasal sayısal yayıncılık teknolojileri ve ülkemizdeki durum
Topçu, Satılmış (TMMOB Elektrik Mühendisleri Odası, 2013) -
Mikrodalga karasal radyo link analiz ve simülasyonlarının Rec. ITU-R P.530 tavsiyesine uygun olarak gerçeklenmesi
Göktaş, Polat; Topçu, Satılmış; Karaşan, Ezhan; Altıntaş, Ayhan (URSI, 2014)Bu çalışmada, NATO Band 3+ (1350 – 2690 MHz) ve NATO Band 4 (4400 – 5000 MHz) frekanslarında çalışan karasal mikrodalga radyo linklerin analizi için gerekli olan yansıma noktası hesabının iyileştirilmesi ve yansımadan ... -
Milli frekans yönetim sistemi
Altıntaş, Ayhan; Köymen, Hayrettin; Topçu, Satılmış; Tın, Erkan (2001) -
Multipath fading effect on terrestrial microwave LOS radio links
Göktaş Polat; Topçu, Satılmış; Karasan, Ezhan; Altıntaş, Ayhan (IEEE, 2015-07)In this paper, the calculation of both the total received power with the effect of the ground reflection and the fade margin to find out the link availability for terrestrial microwave LOS (line-of-sight) radio links is ... -
A new approach to diffraction modelling for line-of-sight (LOS) paths
Topçu, Satılmış; Göktaş, Polat; Karasan, Ezhan; Altıntaş, Ayhan (IEEE, 2015)In this paper, we present a new knife-edge diffraction method based on Bullington method for the terrestrial line-of-sight (LOS) paths. The diffraction loss of our new knife-edge diffraction method is compared with the ... -
Outdoor propagation models: applications and considerations for real life problems
Altıntaş, Ayhan; Topçu, Satılmış; Köymen, Hayrettin; Moral, Gökhan; Yılmaz, Özgür (IEEE, 2003)Implementation of propagation prediction models is discussed. It is shown that for real terrain and building data, the additional parameters and assumptions must be made. The determination of coverage percentages for digital ... -
PLAWE: A piecewise linear circuit simulator using asymptotic waveform evaluation
Topçu, Satılmış (Bilkent University, 1994)A new circuit simulation program, PLAWE, is developed for the transient analysis of VLSI circuits. PLAWE uses Asymptotic Waveform Evaluation (AWE) technique, which is a new method to analyze linear(ized) circuits, and ... -
Propagation prediction and planning tools for digital and analog terrestrial broadcasting and land mobile services
Topçu, Satılmış; Köymen, Hayrettin; Altıntaş, Ayhan; Aksun, İrşadi (2000)The problem of efficient utilization of the radiofrequency spectrum is becoming more complex due to the increasing demands on the spectrum, which is a limited natural resource. If this natural resource is to be used ...