2results about How to "Save Spectrum Resources" patented technology

The invention provides a phase equalization method, device and equipment based on a satellite communication system, a medium and a product, which can be applied to the technical field of wireless communication. The method comprises the following steps: acquiring a time domain orthogonal frequency division multiplexing signal, and performing fast Fourier transform on the time domain orthogonal frequency division multiplexing signal to obtain a frequency domain symbol vector; based on a target initial phase difference determined according to the reference auxiliary synchronization frequency domain signal and a preset phase set, performing phase compensation on the time domain orthogonal frequency division multiplexing signal to obtain an intermediate time domain signal; based on a preset modulation pattern, performing demodulation and modulation processing on the intermediate time domain sequence to obtain a target reference auxiliary synchronization frequency domain symbol; comparing an auxiliary synchronization frequency domain symbol corresponding to the reference auxiliary synchronization frequency domain signal in the intermediate frequency domain signal with a target reference auxiliary synchronization frequency domain symbol to obtain a target phase difference; and performing phase compensation on the intermediate frequency domain signal based on the target phase difference to obtain a target frequency domain signal.

This invention discloses an electromagnetic spectrum allocation method for a drone swarm communication system, comprising the following steps: frequency allocation for the drone swarm communication network; time allocation for the drone swarm communication network; and power control for the drone swarm communication network. Addressing the prominent supply-demand imbalance of spectrum resources and the self-interference and mutual interference problems among drone swarms, this application proposes a spectrum allocation method for drone swarm communication networks based on non-cooperative game theory from three aspects: frequency domain, time domain, and energy domain (power domain), and conducts simulation analysis. Simulation results show that the proposed spectrum allocation method for drone swarm communication networks can effectively save spectrum resources, avoid self-interference and mutual interference among drone swarms, and has the advantages of strong anti-interference and low energy consumption.