What is the relationship between signal and its analytical version?

1. Why do we use analytic signal?
2. What is an analytical signal list out the applications of an analytical signal?
3. What is analytical signal in chemistry?

Why do we use analytic signal?

For example, in spectral analysis, use of analytic signal in-lieu of the original real-valued signal mitigates estimation biases and eliminates cross-term artifacts due to negative and positive frequency components [3].

What is an analytical signal list out the applications of an analytical signal?

In mathematics and signal processing, an analytic signal is a complex-valued function that has no negative frequency components. The real and imaginary parts of an analytic signal are real-valued functions related to each other by the Hilbert transform.

What is analytical signal in chemistry?

Here, the term analytical signal is used for all the signals which are produced by analytical methods and used (treated, evaluated and inter- preted) in any form in analytical chemistry. Analytical signals can result from test samples, reference samples, or data banks (reference spectra and other recordings).