Patent ID: 11879916
Assignee: INDIAN INSTITUTE OF TECHNOLOGY MADRAS (IIT MADRAS)
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A method for estimating frequencies of multiple sinusoids, comprising:
receiving, by an electronic device (100), a signal, wherein the signal comprises the multiple sinusoids;
estimating, by the electronic device (100), an initial frequency of each of the multiple sinusoids present in the received signal;
determining, by the electronic device (100), that a first candidate parameter is less than zero, wherein the first candidate parameter is a function of an estimated Signal-to-noise ratio (SNR) and an estimated threshold;
performing, by the electronic device (100), zero-padding on the received signal;
re-estimating, by the electronic device (100), frequencies obtained from zero-padded version of the received signal;
validating, by the electronic device (100), the re-estimated frequencies obtained from zero-padded version of the received signal based on validation criteria; and
predicting, by the electronic device (100), the re-estimated frequencies or the initial frequencies as optimal frequencies based on the validation.