Amplitude Demodulation Details TRIZ Cases
- Hybrid ECG PLI Filtering for Real-Time T-Wave Detection
Digital harmonic estimation with analog cancellation suppresses ECG power line noise in real time, reducing delay and improving T-wave identification.
- Antenna Null Steering Using Phase Differences Against RF Interference
Phase-difference learning lets a multi-antenna receiver identify unknown transmitters and steer antenna nulls to suppress jamming and spoofing.
- Mixed-Numerology OFDM Interference Cancellation by Signal Regeneration
Regenerating interfering OFDM time-domain samples and subtracting them after FFT reduces residual cross-numerology interference in 5G NR.
- IQ Mismatch Correction Function Refinement for Zero-IF Receivers
Iterative error feedback refines IQ mismatch correction across active frequency bins, improving zero-IF receiver signal accuracy.
- Active Set Management for OFDM Inter-Symbol Interference
Power delay profile and FFT window decisions help manage active sets in OFDM networks to limit ISI, preserve SINR, and avoid excess signaling.
- OZIF Baseband Filter Circuit for Non-Contiguous Carrier Aggregation
Dual complex baseband filters with a combiner enable independent gain control, jammer filtering, and lower noise in carrier aggregation.
- Non-Linear Interference Detection by Signal Magnitude Correlation
Correlating powered victim and offending signal magnitudes reveals non-linear interference without frequency shifting or complex synthesis.
- Pre-FFT OFDM Cancellation for Mixed-Numerology Interference
Regenerating interfering OFDM samples before FFT reduces residual overlap between mixed numerologies and improves desired-signal recovery.