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Doppler Frequency-Shift Information Processing in WOx -Based Memristive Synapse for Auditory Motion Perception.
Tao Zeng1, Zhongqiang Wang1, Ya Lin1
1Key Laboratory for UV Light-Emitting Materials and Technology (Northeast Normal University), Ministry of Education, 5268 Renmin Street, Changchun, 130024, P. R. China.
Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|March 2, 2023
Summary
This study demonstrates auditory motion perception using a WOₓ memristive synapse, processing Doppler frequency shifts for velocity detection. This work advances neuromorphic auditory systems and sensory applications.
Area of Science:
- Neuroscience
- Materials Science
- Electrical Engineering
Background:
- Auditory motion perception is vital for spatiotemporal information processing in neuromorphic systems.
- Doppler frequency shift and interaural time difference (ITD) are key auditory cues.
Purpose of the Study:
- To demonstrate azimuth and velocity detection functions for auditory motion perception.
- To utilize a WOₓ memristive synapse for emulating auditory motion processing.
Main Methods:
- Employed a WOₓ memristor exhibiting volatile (M1) and semi-nonvolatile (M2) modes.
- Implemented high-pass filtering and spike train processing with timing and frequency shifts.
- Utilized triplet spike-timing-dependent-plasticity for Doppler frequency shift information processing.
Main Results:
- Successfully demonstrated azimuth and velocity detection capabilities in the WOₓ memristive synapse.
- Showcased the memristor's ability to process Doppler frequency-shift information for velocity detection.
- Validated the memristor's function in processing relative timing and frequency shifts in spike trains.
Conclusions:
- The WOₓ memristor effectively mimics auditory motion perception, specifically velocity detection via Doppler shifts.
- This research opens new avenues for neuromorphic auditory systems and sensory applications.
- The developed memristive synapse technology is promising for future neuromorphic sensing.
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