Method used for achieving multi-system phase shift keying (MPSK) modulation and based on software radio

TLDR: In this paper, the authors presented a method used for achieving multi-system phase shift keying (MPSK) modulation and based on software radio according to a design scheme for achieving MPSK modulation in a digital mode, identification of a modulation function, a demodulation function and a modulation mode M of the MPSk can be achieved on a digital signal processor plate through a software manner, and the complicated mode that switching is carried out among hardware is replaced.

Abstract: The invention provides a method used for achieving multi-system phase shift keying (MPSK) modulation and based on software radio According to a design scheme for achieving MPSK modulation in a digital mode, identification of a modulation function, a demodulation function and a modulation mode M of the MPSK can be achieved on a digital signal processor (DSP) plate through a software manner, and the complicated mode that switching is carried out among hardware is replaced A modulator selects a corresponding modulation waveform in stored waveforms according to a constellation diagram and a known modulation rank A demodulator carries out demodulation through use of minimum mean square under the condition of signal synchronization, and meanwhile M mode identification is carried out Meanwhile, the fact that phase shift keying (PSK) enables a bit error rate (BER) to rapidly rise along with rising of mark types (M), and the method used for achieving the MPSK modulation and based on the software radio is suitable for the fields of wireless local area networks and communication Under the condition that information speed is the same, code element speed can be reduced, and frequency bands are saved A result shows that the route that 8PSK self-adaptation modulation is achieved through the software radio manner is simple, convenient to use and rapid