A time-frequency domain approach to synchronization, channel estimation, and detection for DS-CDMA impulse-radio systems

2005 ◽  
Vol 4 (6) ◽  
pp. 3018-3030 ◽  
Author(s):  
A.M. Tonello ◽  
R. Rinaldo
Keyword(s):  
Channel Estimation ◽  
Frequency Domain ◽  
Impulse Radio ◽  
Time Frequency ◽  
Radio Systems ◽  
Frequency Domain Approach

scholarly journals Comparison of methodological approaches to identify economic activity regularities in transition economy

2011 ◽  
Vol 59 (7) ◽  
pp. 283-292 ◽  
Author(s):  
Jitka Poměnková ◽  
Svatopluk Kapounek ◽  
Roman Maršálek
Keyword(s):  
Frequency Domain ◽  
Economic Activity ◽  
Transition Economy ◽  
Real Data ◽  
Point Of View ◽  
The Czech Republic ◽  
Time Frequency ◽  
Starting Point ◽  
Methodological Approaches ◽  
Frequency Domain Approach

Presented paper focuses on consideration and evaluation of methodical approaches to analyze cyclical structure character of economic activity in transition economy. As a starting point, work in time domain is applied, which is followed in frequency domain approach. Both approaches are viewed from methodical as well as application point of view and their advantage and disadvantage are discussed. Consequently, time-frequency domain approach is added and applied on real data. On the basis of obtained results recommendation is formulated. All discussed methodical approaches are also considered from the perspective of capability to evaluate behaving of business cycle in time of global economic crisis before/after year 2008. The empirical part of the paper deals with data of gross domestic product in the Czech Republic in 1996/Q1–2010/Q2.

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