A fast spectral estimation algorithm based on the FFT
Citations
528 citations
Cites methods from "A fast spectral estimation algorith..."
...If we redetermine all of the sinusoidal parameters once in each step of the RELAX algorithm, then RELAX becomes the complex version of the algorithm proposed in [ 6 ] for real data sequences....
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...We remark, however, that similarly to the method in [ 6 ], the FFT-based RELAX does not exploit the structure in (26) and, hence, is an approximate approach....
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...We shall explain how the RELAX algorithm is related to the CLEAN algorithm [5] and its improved version [ 6 ], which have been shown to provide good performance with both numerical and experimental data [5]-[7]....
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269 citations
Cites methods from "A fast spectral estimation algorith..."
...Some popular methods include the relaxation algorithm (RELAX) [154], [158], [159], CLEAN [160]–[162], Estimation of Signal Parameters via Rotational Invariance Techniques (ESPRIT), and Decoupled Least Squares (DLS) [163]....
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...Indeed, the CLEAN algorithm and its variants [162] are instances of the RELAX algorithm....
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...The CLEAN algorithm [160]–[162] was first introduced in radio astronomy [161], and later utilized for radar imaging [160]....
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263 citations
Cites methods from "A fast spectral estimation algorith..."
...Alternatively, the unbiased ML estimates can be found using a computationally simple “cyclic descent” optimization algorithm [9], [20]....
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204 citations
76 citations
Cites background from "A fast spectral estimation algorith..."
...In [13] this disadvantage is alleviated by applying zero padding....
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...Recently, a simple iterative algorithm has been proposed in [13] to reduce the long-range spectral leakage....
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References
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