Channel frequency response correction for speaker recognition

2004 ◽  
Author(s):  
Stanley Wenndt ◽  
Richard Floyd
Keyword(s):  
Frequency Response ◽  
Speaker Recognition ◽  
Channel Frequency Response ◽  
Response Correction

Flipping PTS-OFDM System without Side Information

2011 ◽  
Vol 128-129 ◽  
pp. 874-877
Author(s):  
Ya Zhen Li ◽  
Jing Guan ◽  
Li Qun Huang ◽  
Jie Zhang
Keyword(s):  
Channel Estimation ◽  
Frequency Response ◽  
Side Information ◽  
Data Rate ◽  
Ofdm System ◽  
Channel Frequency Response ◽  
Simulation Results ◽  
Ofdm Signals

In this letter, we propose a novel scheme to reduce the PAPR of OFDM signals. It combined the channel estimation in OFDM system based on comb-type pilots and Flipping PTS algorithm. At the sender we insert comb pilot independently and evenly into every partitioned sub-blocks after partition. The side information of Flipping PTS algorithm as one part of the channel frequency response is transmitted. We can achieve Flipping PTS algorithm without SI. Simulation results show that performance of the new algorithm without SI is worse than the algorithm with SI. However, it reduced PAPR, increased of the data rate.

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