Multiple Carrier Systems TRIZ Cases
- Indoor Object Tracking via Channel Information and IMU Fusion
A wireless system extracts spatial-temporal data from multipath channels to track object position and speed.
- Calibrating Analog I/Q-Modulator Using Lookup Table
A calibration method adjusts analog I/Q-modulator signals using predetermined compensation coefficients from a lookup table.
- Pre-Distortion Signal Processing for CIM3 Reduction
A signal processing apparatus generates pre-distortion signals using in-phase and quadrature digital combinations to counteract amplifier non-linearity.
- Wireless Transceiver IQ Calibration Using Shared RF Front-End Circuit
A wireless transceiver uses switch circuits to route signals for in-phase quadrature-phase calibration within a single RF front-end.
- Quaternion Amplitude Modulation for Fading Channel Robustness
Quat-AM transmits four independent signal components over distinct frequency bands, providing up to 8 dB diversity gains against fading.
- Time-Reversal Wireless System for Interference-Limited Dense Networks
A time-reversal wireless system focuses signals using location-specific channel information to maximize data rates.
- Multiplexed Signal Conditioner for AC Sensor Arrays
Time-sharing multiplexer routes multiple AC sensor signals to a single A/D converter, reducing circuit size and power consumption.
- Multi-phase Vector Synthesis Demodulator for Signal Quality
A multi-phase vector synthesis demodulator uses N mixers to generate phase-shifted carrier signals and zero-force synthesize in-phase and quadrature outputs.
- Multi-Rate Digital Self-Interference Cancellation for Full-Duplex Transceivers
Dynamic transform adaptation adjusts filter parameters across power levels, resolving the trade-off between cancellation performance and system complexity.
- Wideband Polar Transmitter for Multi-Protocol Coexistence
A wideband polar transmitter generates modulated intermediate frequency signals for multiple wireless protocols.
- Broadband Re-configurable RF Receiver for Multi-Standard Wireless Systems
A re-configurable broadband RF receiver uses multiple quadrature demodulators and a microcontroller to manage signal processing across wide frequency ranges.