Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A transposed frequency technique for phase noise and frequency stability
  measurements   The digital signal processing has greatly simplified the process of phase
noise measurements, especially in oscillators, but its applications are largely
confined to the frequencies below 400 MHz. We propose a novel transpose
frequency technique, which extends the frequency range of digital noise
measurements to the microwave domain and beyond. We discuss two basic
variations of the proposed noise measurement technique, one of which enables
characterization of phase fluctuations added to the passing signal by the
particular microwave component, for example by an amplifier, while another one
is intended for measurements of phase fluctuations of the incoming signal
itself.

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The categories of this paper are: atom-ph
7
The categories of this paper are: hep-th
14
The categories of this paper are: math-ph
10
The categories of this paper are: q-bio
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg
9
The categories of this paper are: nlin
30
The categories of this paper are: q-alg
34
The categories of this paper are: chem-ph
25
The categories of this paper are: patt-sol
27
The categories of this paper are: comp-gas
20
The categories of this paper are: acc-phys
21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an