Hello, I am a researcher working on GNSS Interferometric Reflectometry (GNSS-IR). The signal segments we work on may not always contain many waves. I need an expert opinion on how I should proceed in such a situation. My questions are as follows:
- How many full waves are needed to accurately estimate the frequency of a signal segment?
- Is there a conventional criterion for the minimum number of waves.
- Is it possible to express the accuracy of an estimated frequency with a quantity derived from the spectra (such as the peak width)?
Thank you in advance for your answers and suggestions.
Regards.
