Computationally efficient spline- based time delay estimation
نویسندگان
چکیده
منابع مشابه
A Computationally Efficient SUPANOVA: Spline Kernel Based Machine Learning Tool
Many machine learning methods just consider the quality of prediction results as their final purpose. To make the prediction process transparent (reversible), spline kernel based methods were proposed by Gunn. However, the original solution method, termed SUpport vector Parsimonious ANOVA (SUPANOVA) was computationally very complex and demanding. In this paper, we propose a new heuristic to com...
متن کاملAdaptive Technique for Computationally Efficient Time Delay and Magnitude Estimation of Sinusoidal Signals
— An online, adaptive method of time delay and magnitude estimation for sinusoidal signals is presented. The method is based on an adaptive gradient descent algorithm that directly determines the time delay and magnitudes of two noisy sinusoidal signals. The new estimator uses a novel quadrature carrier generator to produce the carriers for an adaptive quadrature phase detector, which in turn u...
متن کاملFFT-Based Efficient Algorithms for Time Delay Estimation
Suppose that we have a single sensor receiving a superimposition of attenuated and delayed replicas of a known signal plus noise. From the received data we want to estimate the arrival times of the various replicas and their (complex or real) attenuation coefficients (gains). This is the well-known time delay estimation problem which occurs in many fields including radar, active sonar, wireless...
متن کاملApplication of Model-Based Estimation to Time-Delay Estimation of Ultrasonic Testing Signals
Time-Delay-Estimation (TDE) has been a topic of interest in many applications in the past few decades. The emphasis of this work is on the application of model-based estimation (MBE) for TDE of ultrasonic signals used in ultrasonic thickness gaging. Ultrasonic thickness gaging is based on precise measurement of the time difference between successive echoes which reflect back from the back wall ...
متن کاملEfficient super resolution time delay estimation techniques
In this paper, an e cient Weighted Fourier transform and RELAXation based algorithm (referred to as WRELAX) is rst proposed for the well-known time delay estimation problem. WRELAX involves only a sequence of weighted Fourier transforms. Its resolution is much higher than that of the conventional matched lter approach. One disadvantage associated with WRELAX is that it converges slowly when the...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
سال: 2008
ISSN: 0885-3010
DOI: 10.1109/tuffc.900