Summary
|
For Full-Text PDF, please login, if you are a member of IEICE, or go to Pay Per View on menu list, if you are a nonmember of IEICE. |
|
Short-Time Frequency Estimation of a Real Sinusoid Hing-Cheung SO Yiu-Tong CHAN Publication IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Vol.E88-A No.9 pp.2455-2459 Publication Date: 2005/09/01 Online ISSN: DOI: 10.1093/ietfec/e88-a.9.2455 Print ISSN: 0916-8508 Type of Manuscript: LETTER Category: Digital Signal Processing Keyword: frequency estimation, real sinusoid, Full Text: PDF(698.6KB)>>
Summary: The frequency estimate for a real sinusoid provided by the periodogram has a bias which is particularly severe for a short observation interval. In this paper, two improvements to the periodogram are proposed to reduce this bias. The first method transforms the real tone to a complex sinusoid while the second algorithm subtracts the negative spectral line from the received signal, prior to applying the periodogram. The performance of the two methods is illustrated by comparing with the periodogram and Quinn's interpolation as well as Cramér-Rao lower bound. | ||||||||||
| ||||||||||
