| 摘要 |
A radio signal decoder comprises a receiver configured to receive a digitized radio signal having modulated subcarrier frequencies encoding digital information, a first set of the subcarrier frequencies having a first subcarrier spacing, a second set of the subcarrier frequencies having a second subcarrier spacing, a first transformer configured to transform the digitized radio signal from a time domain into a frequency domain, the transformer being configured with the first subcarrier spacing, a first decoder configured to reconstruct digital information from the output of the first transformer, and an inverse transformer configured to to transform the input from the frequency domain back to the time domain with the first subcarrier spacing, a second transformer configured to transform the output of inverse transformer from the time domain to a frequency domain with the second subcarrier spacing, and a second decoder reconstructing digital information from the output of the second transformer. |
