Time-free frequency transmitting diversity non-coherent detection method in orthogonal frequency division multiplexing system
Title：
Time-free frequency transmitting diversity non-coherent detection method in orthogonal frequency division multiplexing system
Application Number：
 200510086342
Application Date：
 2005/09/02
Announcement Date：
 2007/03/07
Pub. Date：
Publication Number：
 1925475
Announcement Number：
Grant Date：
Granted Pub. Date：
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 H04L 27/26, H04L 1/06
Applicant(s)：
 Tsinghua University
Inventor(s)：
Key Words：
 orthogonal frequency, time-free frequency transmitting diversity, non-coherent detection method
Abstract：
 This invention belongs to digital information transmission technique field, which comprises the following steps: a, sending known initial send signal sequence; b, processing input frequency signal sequence on zone for differentiating coding; c, coding each sequence for open frequency codes; d, inserting proper protection distance of time zone signal to form each linkage total OFDM signal frame; e, forming filter, A/D conversion and front process by signal frame and sending through two antenna at preset frequency wide band; f, fulfilling irrelative testing between continuous two frames of receive signals for frequency zone difference decoding.
Claim：
Priority：
PCT：
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2008-4-17
  Selected patents owned by Tsinghua University filed in 2005 are loaded.
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