Modeling of Doppler frequency shift in multipath radiochannels
نویسندگان
چکیده
منابع مشابه
Doppler Frequency Estimation in Multipath Fading Channels
As prior knowledge of Doppler frequency has been found useful in many applications of mobile communications, it is necessary to estimate the Doppler frequency at the mobile station (MS) based on the received fading signal. Rice et al 1] had derived Doppler frequency estimates using continuous-time received fading signals. In the present investigation, level crossing rate (LCR) and autocorrelati...
متن کاملDoppler effect and frequency - shift in optics
A critical review of frequency-shift phenomena a la Doppler effect is presented. The importance of Fermi's theory of 1932 is pointed out,and it is argued that there exist gaps in our understanding of this phenomena at a fundamental level. Alternative mechanism in terms of photon number oscillations is suggested for polarization changing experiments. The physical reality of single photon is revi...
متن کاملAnalytical and Experimental Comparisons Between the Frequency-Modulated-Frequency-Shift Measurement and the Pulsed-Wave-Time-Shift Measurement Doppler Systems
In previous publications, a new echo-ranging Doppler system based on transmission of repetitive coherent frequency-modulated ͑FM͒ sinusoids in two different implementations was presented. One of these implementations, the frequency-modulated–frequency-shift measurement ͑FM–fsm͒ Doppler system is, in this paper, compared with its pulsed-wave counterpart, the pulsed-wave– time-shift measurement ͑PW–ts...
متن کاملModeling of Multipath Transport
In this paper, we propose a model for evaluating the transmission performance of multipath transport. Previous researches focused exclusively on single pair users in simple scenarios. The distinct perspective in this paper is to build models for analyzing the performance when multipath transport is used in the entire network scope. We illustrate the influences on the transmission performance ca...
متن کامل: metadiscourse in introduction sections of applied linguistics and physics research articles: exploring variation in frequency and type
abstract in written mode of language, metadiscourse markers are used commonly to help writers in general and academic writers in particular to produce coherent and professional texts. the purpose of the present study was to compare introduction sections of applied linguistics and physics articles regarding their use of interactive and interactional metadiscourse markers based on the model pro...
15 صفحه اولذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Solnechno-Zemnaya Fizika
سال: 2016
ISSN: 2412-4737
DOI: 10.12737/16505