Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Synchrosqueezing-based Recovery of Instantaneous Frequency from
  Nonuniform Samples   We propose a new approach for studying the notion of the instantaneous
frequency of a signal. We build on ideas from the Synchrosqueezing theory of
Daubechies, Lu and Wu and consider a variant of Synchrosqueezing, based on the
short-time Fourier transform, to precisely define the instantaneous frequencies
of a multi-component AM-FM signal. We describe an algorithm to recover these
instantaneous frequencies from the uniform or nonuniform samples of the signal
and show that our method is robust to noise. We also consider an alternative
approach based on the conventional, Hilbert transform-based notion of
instantaneous frequency to compare to our new method. We use these methods on
several test cases and apply our results to a signal analysis problem in
electrocardiography.

9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
25
The categories of this paper are: patt-sol
19
The categories of this paper are: eess
22
The categories of this paper are: chao-dyn
10
The categories of this paper are: q-bio
28
The categories of this paper are: alg-geom
32
The categories of this paper are: atom-ph
29
The categories of this paper are: funct-an
7
The categories of this paper are: hep-th
0
The categories of this paper are: hep-ph
34
The categories of this paper are: chem-ph
3
The categories of this paper are: physics
20
The categories of this paper are: acc-phys
15
The categories of this paper are: nucl-ex
18
The categories of this paper are: econ