Symmetric Iterative Interpolation Processes

Accurate frequency estimation of multiple complex and real sinusoids based on iterative interpolation

Digital Signal Processing ◽

10.1016/j.dsp.2021.103173 ◽

2021 ◽

pp. 103173

Author(s):

Ze-Long Mou ◽

Ya-Qing Tu ◽

Peng Chen ◽

Kui Wang

Keyword(s):

Frequency Estimation ◽

Iterative Interpolation

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A Fast Iterative Interpolation Method in f-k Domain for 3-D Irregularly Sampled GPR Data

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing ◽

10.1109/jstars.2015.2489260 ◽

2016 ◽

Vol 9 (1) ◽

pp. 9-17 ◽

Cited By ~ 6

Author(s):

Li Yi ◽

Kazunori Takahashi ◽

Motoyuki Sato

Keyword(s):

Interpolation Method ◽

Iterative Interpolation

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Fingerprinting Acoustic Localization Indoor Based on Cluster Analysis and Iterative Interpolation

Applied Sciences ◽

10.3390/app8101862 ◽

2018 ◽

Vol 8 (10) ◽

pp. 1862 ◽

Cited By ~ 3

Author(s):

Shuopeng Wang ◽

Peng Yang ◽

Hao Sun

Keyword(s):

Cluster Analysis ◽

Interpolation Method ◽

Reference Points ◽

Matching Method ◽

Two Stage ◽

Positioning Accuracy ◽

Acoustic Localization ◽

Database Construction ◽

Iterative Interpolation ◽

Stage Matching

Fingerprinting acoustic localization usually requires tremendous time and effort for database construction in sampling phase and reference points (RPs) matching in positioning phase. To improve the efficiency of this acoustic localization process, an iterative interpolation method is proposed to reduce the initial RPs needed for the required positioning accuracy by generating virtual RPs in positioning phase. Meanwhile, a two-stage matching method based on cluster analysis is proposed for computation reduction of RPs matching. Results reported show that, on the premise of ensuring positioning accuracy, two-stage matching method based on feature clustering partition can reduce the average RPs matching amount to 30.14% of the global linear matching method taken. Meanwhile, the iterative interpolation method can guarantee the positioning accuracy with only 27.77% initial RPs of the traditional method needed.

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