Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Frequency Estimation of Multiple Sinusoids with Sub-Nyquist Sampling
  Sequences   In some applications of frequency estimation, the frequencies of multiple
sinusoids are required to be estimated from sub-Nyquist sampling sequences. In
this paper, we propose a novel method based on subspace techniques to estimate
the frequencies by using under-sampled samples. We analyze the impact of
under-sampling and demonstrate that three sub-Nyquist sequences are general
enough to estimate the frequencies under some condition. The frequencies
estimated from one sequence are unfolded in frequency domain, and then the
other two sequences are used to pick the correct frequencies from all possible
frequencies. Simulations illustrate the validity of the theory. Numerical
results show that this method is feasible and accurate at quite low sampling
rates.

28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
3
The categories of this paper are: physics
32
The categories of this paper are: atom-ph
24
The categories of this paper are: dg-ga
35
The categories of this paper are: mtrl-th
37
The categories of this paper are: supr-con
16
The categories of this paper are: stat
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
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The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
19
The categories of this paper are: eess
15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg