Free Communications
نویسندگان
چکیده
منابع مشابه
Doppler-Free Digital Communications
| The existence of doppler has always been an inconvenience for digital communications. Several schemes have been proposed to deal with the problem, often involving some kind of doppler tracking and/or compensation algorithm. All these schemes do, however, increase the complexity of the receiver. Furthermore, the need for exactness in the doppler tracking scheme adds an extra dimension to the s...
متن کاملSaturday, June 26, 2010: Free Communications
Introduction and Aims: Oxidative stress (OS) causing endothelial dysfunction (ED) is thought to be a major reason why renal patients suffer more cardiovascular (CV) events than would be expected from their conventional risk factors such as BP. One way to reduce OS is to prevent its formation by using allopurinol to block xanthine oxidase (XO)-induced OS. In this study, we examined if allopurino...
متن کاملFree Space Optical Communications System Pointer
Free Space Optical (FSO) communications pointing problems will be described and a solution presented. Conventional systems used in sea, land, and space are illustrated. Our integrated approach investigates three major problems areas: kinematics, structure, and dexterity. Their interrelationship will be discussed.
متن کاملFree Space Optical Communications: An Overview
Free-Space Optics (FSO), also known as fiber-free or fiberless optics, is an emerging technology that transports data via laser technology. It is a line-of-sight technology that currently enables optical transmission up to 2.5 Gbps of data, voice and video though the air, allowing optical connectivity without deploying fiber-optic cable or securing spectrum licenses. It is moving closer to bein...
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ژورنال
عنوان ژورنال: International Dental Journal
سال: 1998
ISSN: 0020-6539
DOI: 10.1111/j.1875-595x.1998.tb00705.x