Research on LFM and voice SSB signal transmission system in same bandwidth

For the problem of increasingly scarce spectrum resources, improving bandwidth efficiency is to be solved. Drawing on traditional techniques based on CDMA (Code Division Multiple Access, CDMA) communication, this paper puts forward a transmission system in the same bandwidth of LFM and voice SSB signal. Theoretical analysis and simulation results showed that LFM and voice SSB signal can be transmitted in the same bandwidth, LFM can be demodulated by non-coherent demodulation method which is FrFT transform and be filtered in the FrFT domain, thus to finish the separate and demodulation of LFM and voice SSB signal.