首页|Two peak‑fnding algorithms for two‑dimensional unimodal symmetric signals based on mirroring and interpolating
Two peak‑fnding algorithms for two‑dimensional unimodal symmetric signals based on mirroring and interpolating
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NETL
NSTL
Springer Nature
In the processing of two-dimensional single-peak symmetric signals, the peak posi- tion is a very important parameter. The current peak position estimation methods generally can be classifed into two types: one is direct methods that get the value of peak position, which always sufer the shortcomings of low precision and poor noise resistance, especially for the estimation of sparse signals, whose quality is far from satisfactory; the other type requires extra prior information about the signals and then applies the corresponding ftting methods, but these methods often lose gener- ality. In this paper, two new peak-fnding algorithms are proposed. They mainly take advantage of the symmetry of the signal to obtain a denser signal through the mir- roring and interpolating operations, which enhance the noise resistance and the esti- mation precision for the algorithm. From the experiments conducted in this paper, these two algorithms show obvious advantages compared with the centroid method, whose abilities of noisy resistance and performances in processing sparse signals are increased by approximately ffty to one hundred percent.
Peak-fnding algorithmTwo-dimensional unimodal symmetric signalsMirroring and interpolating operationsSymmetry
School of Software and Internet of Things Engineering,JiangXi University of Finance and Economics,No.168,East Shuanggang Road,Nanchang 330013,Jiangxi Province,China
NETL
NSTL
Springer Nature
