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1 results about "Light speed" patented technology

Relative motion speed tracking method and device, readable storage medium and electronic equipment

ActiveCN112285684AAvoid dependenceExcellent speed tracking accuracyRadio wave reradiation/reflectionPhase differenceLight speed
The invention discloses a relative motion speed tracking method and device, a readable storage medium and electronic equipment, and the method comprises the steps: carrying out correlation calculationon a received signal and a reference signal during each hopping in a current information bit, obtaining a single-hop complex correlation signal, and carrying out compensation calculation; performinginter-hop coherent accumulation calculation on each compensated single-hop complex correlation signal; calculating a phase value according to the real part and the imaginary part of the accumulated value, and unwrapping the phase value to obtain a processed target phase value; calculating a difference value between the target phase value corresponding to the current information bit and the targetphase value corresponding to the previous information bit to obtain a corresponding phase difference; and calculating the frequency difference corresponding to the phase difference, and calculating the relative motion speed deviation according to the frequency difference, the light speed and the average center frequency of the received signal. According to the method, a relative motion speed deviation calculation method different from the prior art is adopted, and tracking of the signal relative speed in frequency hopping communication can be completed with high precision.
Owner:NANCHANG UNIV
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