# A pde-Based Analysis of the Spectrogram Image for Instantaneous Frequency Estimation

> Research article (Mathematics, 2021) · cited 10× · AI/ML

**Wikidata**: [openalex:W3124300419](https://www.wikidata.org/wiki/openalex:W3124300419)  
**Source**: https://4ort.xyz/entity/a-pde-based-analysis-of-the-spectrogram-image-for-instantaneous-frequency-estimation