Preprocessing system for cancelling interference within adjacent ranges of HDR and CDR analog signals
By utilizing data folding technology and artificial intelligence assistance in the preprocessing system, and leveraging signal symmetry and frequency domain adjustment processing, the interference problem in the adjacent range of HDR and CDR analog signals was solved, achieving interference cancellation and signal recovery for a single path and improving signal quality.
Patent Information
- Application Number
- CN202411263264.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2024-08-06
- Filing Date
- 2024-09-10
- Publication Date
- 2026-02-06
AI Technical Summary
In the process of receiving hybrid digital radio (HDR) and conventional digital radio (CDR) signals, existing technologies have difficulty effectively eliminating interference in the adjacent range of analog signals, especially when the received signal in the adjacent channel is stronger than that in the original channel, resulting in signal unrecoverability or degradation.
A preprocessing system is employed, which utilizes the symmetry of the signal through data folding technology to divide the interference area into a symmetrical region and the non-interference area. The signal is then recovered through frequency domain adjustment processing. Combined with artificial intelligence and active noise cancellation technology, interference cancellation for a single path is achieved.
Without using two beamforming paths, it effectively eliminates interference in adjacent ranges of analog signals, improves signal recovery quality, and enhances mobility performance and signal-to-noise ratio.