Parameter estimation for exponential sums by approximate Prony method
نویسندگان
چکیده
منابع مشابه
Parameter estimation for exponential sums by approximate Prony method
The recovery of signal parameters from noisy sampled data is a fundamental problem in digital signal processing. In this paper, we consider the following spectral analysis problem: Let f be a real–valued sum of complex exponentials. Determine all parameters of f , i.e., all different frequencies, all coefficients, and the number of exponentials from finitely many equispaced sampled data of f . ...
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Let zj := e fj with fj ∈ (−∞, 0] + i [−π, π) be distinct nodes for j = 1, . . . ,M . With complex coefficients cj 6= 0, we consider a nonincreasing exponential sum h(x) := c1 e f1 x + . . . + cM e fM x (x ≥ 0). Many applications in electrical engineering, signal processing, and mathematical physics lead to the following problem: Determine all parameters of h, if 2N sampled values h(k) (k = 0, ....
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ژورنال
عنوان ژورنال: Signal Processing
سال: 2010
ISSN: 0165-1684
DOI: 10.1016/j.sigpro.2009.11.012