نتایج جستجو برای: آنتن bts

تعداد نتایج: 2212  

ژورنال: :علوم و فناوری فضایی 0
شاهرخ مرزبان کمال محامدپور

در اکثر سیستم های تله متری فضایی از حداقل دو آنتن فرستنده برای ارسال سیگنال رادیویی به سمت آنتن گیرنده استفاده می شود. دلیل آن تأثیر بدنه بزرگ و فلزی اجسام پرنده در قطع ارتباط رادیویی بین آنتن فرستنده و آنتن گیرنده در حین مانورهای پروازی است. نصب دو آنتن فرستنده برروی بدنه جسم پرنده ارتباط مناسب و دائم رادیویی بین فرستنده و گیرنده تله متری را تضمین خواهد کرد، ولی در لحظاتی از پرواز که آنتن گیرن...

ژورنال: :نشریه دانشکده فنی 2002
فرخ آزرم

با توجه به رشد سریع تکنولوژی تلفن همراه جهت افزایش تعداد متقاضیان این تکنولوژی ، لازم است که باند فرکانس این سیستم از 900 mhz به 1800 mhz انتقال یابد. استفاده از روش های دایورسیتی جهت بهبود کیفیت سیگنال دریافتی الزامی خواهد بود. صرفنظر از تکنیک های مختلفی دایورسیتی ، دریافت دو سیگنال مختلف توسط آنتن بخشی از این روش می باشد. استفاده از دو آنتن مجزا که در صفحه افقی در فاصله متناسب از یکدیگر قرار ...

Journal: :Jurnal Media dan Komunikasi Indonesia 2022

Baru-baru ini, BTS memperoleh sorotan dari media global sebagai music influencer. Hal tersebut tidak dapat dilepaskan kontribusi penggemarnya (ARMY) yang berdedikasi. Bentuk dukungan disampaikan oleh ARMY bermacam-macam, mulai aktivitas streaming hingga pembelian merchandise. Fenomena merchandise ditengarai bentuk consumer fanaticism. Penelitian ini berfokus untuk melihat bagaimana fanaticism d...

2008
James Atkinson

We give new Bäcklund transformations (BTs) for some known integrable (in the sense of being multidimensionally consistent) quadrilateral lattice equations. As opposed to the natural auto-BT inherent in every such equation, these BTs are of two other kinds. Specifically, it is found that some equations admit additional autoBTs (with Bäcklund parameter), whilst some pairs of apparently distinct e...

Journal: :CoRR 2009
Alexei Barbosa de Aguiar Plácido Rogério Pinheiro Alvaro de Menezes S. Neto Ruddy P. P. Cunha Rebecca F. Pinheiro

GSM networks are very expensive. The network design process requires too many decisions in a combinatorial explosion. For this reason, the larger is the network, the harder is to achieve a totally human based optimized solution. The BSC (Base Station Control) nodes have to be geographically well allocated to reduce the transmission costs. There are decisions of association between BTS and BSC t...

2010
Waralak V. Siricharoen

The research is aim to create MRT: Metropolitan Rapid Transit Authority of Thailand (Underground Train) and BTS: Bangkok Mass Transit System Public Company Limited (Sky Train) interactive route navigation map. This map shows the whole routes of both MRT and BTS train stations which are located in the interactive manner. The design is not only a proposal for showing the whole information about d...

2011

Contents As part of the global development of telecommunications networks, Base Transceiver Stations (BTS) are also frequently constructed in Off-Grid locations or Bad-Grid locations. The Sunny Island is very well suited to ensure the electricity supply to a BTS even in such locations due to its flexibility and robustness. Off-Grid systems with Sunny Island are distinguished by the following fe...

2008
Eun-Kyu Byun Jin-Soo Kim Yang-Suk Kee Ewa Deelman Karan Vahi Gaurang Mehta

Workflow technologies have become a major vehicle for the easy and efficient development of science applications. When integrating the workflow technology with the state-of-art resource provisioning technology, the challenge is to determine the amount of resources necessary for the execution of workflow. This paper introduces an algorithm named Balanced Time Scheduling (BTS), which estimates th...

2015
Syed M. S. Reza Linmin Pei K. M. Iftekharuddin

This work proposes fully automatic ischemic stroke lesion segmentation in multimodality brain MRI by extending our prior brain tumor segmentation (BTS) work [1]. The extensions of the BTS method include development of relevant MR image intensity inhomogeneity correction, several new features and feature ranking methods. We characterized brain lesions with multiple features such as piece-wise tr...

Journal: :Physics Letters A 2022

We introduce a deep neural network learning scheme to learn the B\"acklund transforms (BTs) of soliton evolution equations and an enhanced for data-driven equation discovery based on known BTs, respectively. The first takes advantage some solution (or equation) information study BT sine-Gordon equation, complex real Miura between defocusing (focusing) mKdV KdV as well via transforms. second use...

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