I am doing research on compressive sensing. I am new in this field. I read several papers regarding analysis dictionaries.

Here are some papers that I have read so far:




What I do not understand is if I have

$Ω ∈ \mathbb{R}^{P\times M} $ where $x$ is the raw signal, $x ∈ \mathbb{R}^{M \times 1} $

  • What is an analysis dictionary (AD,) and an example of an analysis dictionary?
  • How can we obtain $AD ∈ \mathbb{R}^{P \times 1}$
  • $\begingroup$ It seems to me that the papers you have read so far are not very authoritative. Why did you chose them? $\endgroup$ Apr 16, 2021 at 20:34
  • 1
    $\begingroup$ I read IEEE proceeding that stated Greedy Analysis Pursuit has better performance rather than any methods in Greedy class, therefore I am interested in GAP $\endgroup$ Apr 21, 2021 at 6:06


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