Instantaneous frequency estimation, a topic of fundamental importance in signal processing, has received considerable attention in the open literature. This paper presents a new instantaneous frequency estimator based on digital differentiation concepts. The proposed estimator, referred to as the GDF estimator, is closely related to, but computationally more efficient than the Kay estimator. A slightly modified version of the GDF estimator, referred to as the MGDF estimator, is especially attractive for software-based real time demodulation of binary FSK signals.

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Persistent URL dx.doi.org/10.1109/BSC.2008.4563197
Conference 24th Biennial Symposium on Communications, BSC 2008
Citation
Wang, S. (Sichun), Inkol, R. (Robert), & Rajan, S. (2008). A general differentiation-based instantaneous frequency estimator. In 24th Biennial Symposium on Communications, BSC 2008 (pp. 21–26). doi:10.1109/BSC.2008.4563197