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To resolve the low communication rate and susceptible to multipath interference and other issues of pulse modulation communication method, a new scheme of underwater acoustic (UWA) communication was proposed based on fractional Fourier transform (FRFT). Fractional Fourier transform is only applicable to linear frequency modulation (LFM) signal, which has the advantages of high processing gain, long...
A new underwater acoustic (UWA) communication system is proposed based on fractional Fourier transform (FRFT) for complex condition of underwater environment. Because of using chirp-basis function in FRFT, this communication mode uses linear frequency modulation (LFM) as carrier signal of transmitted information, which has good anti-jamming capability. The code elements were divided into groups in...
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