scholarly journals Frequency domain response estimation of underwater acoustic channel and noise estimation for single-carrier frequency domain equalization

2014 ◽  
Vol 63 (19) ◽  
pp. 194304
Author(s):  
Zhang Xin ◽  
Zhang Xiao-Ji ◽  
Xing Xiao-Fei ◽  
Jiang Li-Wei
Keyword(s):  
Frequency Domain ◽  
Carrier Frequency ◽  
Noise Estimation ◽  
Underwater Acoustic Channel ◽  
Underwater Acoustic ◽  
Acoustic Channel ◽  
Frequency Domain Equalization ◽  
Single Carrier ◽  
Frequency Domain Response

Autoregressive model of an underwater acoustic channel in the frequency domain

2022 ◽  
Vol 185 ◽  
pp. 108397
Author(s):  
Biao Liu ◽  
Ning Jia ◽  
Jianchun Huang ◽  
Shengming Guo ◽  
Dong Xiao ◽  
...  
Keyword(s):  
Frequency Domain ◽  
Autoregressive Model ◽  
Underwater Acoustic Channel ◽  
Underwater Acoustic ◽  
Acoustic Channel

scholarly journals Research on single carrier frequency domain equalization system based on FQPSK modulation

2018 ◽  
Vol 17 ◽  
pp. 03012
Author(s):  
Meng Zhang ◽  
Zhisong Bie
Keyword(s):  
Frequency Domain ◽  
Carrier Frequency ◽  
Viterbi Algorithm ◽  
Cyclic Prefix ◽  
Phase Shift Keying ◽  
Frequency Domain Equalization ◽  
Single Carrier ◽  
High Power Amplifier ◽  
Quadrature Phase ◽  
Shift Keying

Feher-patented quadrature phase shift keying (fqpsk) modulation is proposed for single-carrier frequency domain equalization (sc-fde). this paper puts forward a new method modulation called cc-bcd-fqpsk. the fqpsk signal is oversampled to make that the discrete fourier transform (dft)/ inverse dft (idft) processing of it can be applied for sc-fde. the methodology for maintaining waveform continuity with a cyclic prefix (cp) is presented. wrap-around viterbi algorithm (wava) is suggested for demodulation after equalization at the receiver. simulation results show that sc-fde system based on cc-bcd-fqpsk modulation has higher spectral efficiency than linear modulation qpsk and is an effective approach for eliminating isi and using nonlinear high power amplifier.

Single carrier frequency domain equalization based on SSB modulation

2009 ◽  
Author(s):  
Junwen Zhang ◽  
Wuliang Fang ◽  
Yufeng Shao ◽  
Bo Huang ◽  
Nan Chi
Keyword(s):  
Frequency Domain ◽  
Carrier Frequency ◽  
Frequency Domain Equalization ◽  
Single Carrier
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