SUMMARY AND FUTURE DIRECTIONS

We demonstrated four estimators of the linear frequency chirp parameter $\alpha$ that may be used to enhance sinusoidal modeling. The estimators apply to Hann windowed signals, which are often found in COLA systems (as opposed to Gaussian windowed signals). The estimators yield $\alpha$ estimates accurate to within 2%, though the inexact nature of our models still leads to observable distance from the Cramèr-Rao lower bound. Future work will compare the current estimators to estimators for Gaussian windowed signals, and will detail implementation of the current estimators as a single-output estimator.