کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
566638 876011 2011 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Closed-form frequency estimator based on narrow-band approximation under noisy environment
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر پردازش سیگنال
پیش نمایش صفحه اول مقاله
Closed-form frequency estimator based on narrow-band approximation under noisy environment
چکیده انگلیسی

A new method for single sinusoidal frequency estimation in closed-form formula is proposed. Since sinusoidal signals are narrow-banded and white noise distribution is statistically equal in the whole spectrum, a narrow-band signal extracted from the Fourier transform of the original signal can be used to approximate the noise-corrupted sinusoidal signal. A concise closed-form formula is then deduced to estimate the frequency based on the narrow-band signal. Performance analysis and simulation results are presented, showing that the new algorithm has close performance to the Cramer–Rao bound, especially under low SNRs. It is also demonstrated that the method can be easily generalized to multi-sinusoidal signals.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Signal Processing - Volume 91, Issue 4, April 2011, Pages 841–851
نویسندگان
, , ,