|Table of Contents|

Frequency Estimation Algorithm of Sinusoidal Signals

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2012年06期
Page:
0-
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Info

Title:
Frequency Estimation Algorithm of Sinusoidal Signals
Author(s):
HE YimingZHANG GangbingQIAN Xianyi
School of Eletronic Information and Eletric Engineering,Changzhou Institute of Technology, Changzhou 231002,China
Keywords:
sinusoidal signalsfrequency estimationinterpolationCramerRao lower bound
PACS:
TN911
DOI:
-
Abstract:
To estimate the frequency of sinusoidal signals in noise accurately,an algorithm of frequency estimation for sinusoidal signals with arbitrary length is researched.The lengths of the samples are taken as integral powers of 2 and the frequency of truncated sequences is estimated based on the interpolation algorithm.The corresponding index of maximum amplitude of spectrum for the original signal is given according to the relationship among the frequency,the frequency resolution and the index of spectrum with biggest amplitude.The frequency estimation for sinusoidal signals with arbitrary length is solved by using interpolation.Simulation results show that the performances of the proposed algorithm do not vary with the change of signal frequency and attains the CramerRao lower bound of sinusoidal signal.

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Last Update: 2012-12-29