Data Transmission by Frequency-Division Multiplexing Using DFT",S.B.Wei

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【文件名】:06817@52RD_tiplexing Using the Discrete Fourier Transform.rar
【格　式】:rar
【大　小】:592K
【简　介】:DATA ARE usually sent as a serial pulse train, but
there has long been interest in frequency-divi-
sion mult.iplexing with overlapping subchannels
as a means of avoiding equalization, combating impulsive
noise, and making fuller use of the available bandwidth.
These “parallel da.ta” systems, in which emh member of
a sequence of N digits modulates a subcarrier, have been
studied in [2] and [4]. Multitone systems are widely used
and have proved to be effective in [3], [SI, and [9]. Fig.
1 compares the transn~issions of a serial and a parallel
system.

【目　录】:
I. INTRODUCTION
11. FREQUENCY-DIVISION MULTIPLEXING AS A DISCRETE TRANSFORMATION
111. EQUALIZATION BY USE OF CHANNEL SOUNDINGS
IV. APPROXIMATE ANALYSIS OF THE EFFECTS OF CHANNEL DISTORTION
V. ALGORITHM FOR MIXIMIZING MEAN-SQUARE
VI. TRANSMISSION WITHOUT EQUALIZATION

DISTORTION