Velocity Propogation TRIZ Cases
- Underwater Acoustic Transmitter for Sound Velocity Profile Estimation
Single underwater transmitter sends acoustic waves in multiple directions to solve simultaneous equations, reducing device count and cost.
- Ultrasonic Measuring Apparatus Doppler Shift Cancellation
Phase difference processing cancels Doppler shifts in coded spread spectrum signals, maintaining high SNR for precise distance and orientation estimation.
- Ultrasonic Measuring Apparatus Interference Cancellation
A method extracts interference signals from ultrasonic waves using despreading codes to cancel mutual noise between multiple devices.