کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
559307 1451734 2015 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Joint estimation of time difference of arrival and frequency difference of arrival for cyclostationary signals under impulsive noise
ترجمه فارسی عنوان
برآورد مشترک برآورد زمان ورود و تفاوت فرکانس ورودی برای سیگنال های سیکلوستاریاسیون تحت نویز تکان دهنده
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر پردازش سیگنال
چکیده انگلیسی

The problem of jointly estimating time difference of arrival (TDOA) and frequency difference of arrival (FDOA) or Doppler has a variety of practical applications. The conventional cyclic ambiguity function and the fractional lower-order ambiguity function suffer performance degradation in the presence of non-Gaussian α-stable impulsive noise and corruptive interference. To overcome these drawbacks, a new robust signal-selective algorithm for cyclostationary signals based on the fractional lower-order cyclostationarity is proposed. The new method makes use of cyclostationarity features and fractional lower-order statistics, and is highly tolerant to interference and robust to both Gaussian noise and non-Gaussian α-stable impulsive noise. The robustness and effectiveness of the proposed method in the presence of impulsive noise and interference are demonstrated by comparing it with the cyclostationarity-based and fractional lower-order statistics (FLOS)-based methods.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Digital Signal Processing - Volume 46, November 2015, Pages 68–80
نویسندگان
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