منابع مشابه
Delay estimation using sinusoidal signals
The problem of estimating the di erence in arrival times of a noisy sinusoid received at two spatially separated sensors is considered. Given the sinusoidal frequency, a simple delay estimator using the phase di erence of the discrete time Fourier transforms (DTFTs) of the received signals is devised. With the use of periodogram, the algorithm is extended to estimate the delay when the frequenc...
متن کاملRobust adaptive parameter estimation of sinusoidal signals
A novel two step adaptive identification framework is proposed for sinusoidal signals to estimate the unknown offset, amplitude, frequency and phase, where only the output measurements are used. After representing the sinusoidal signal as a linearly parameterized form, several adaptive laws are developed. The proposed adaptive laws are driven by parameter estimation error information that is de...
متن کاملAutomatic Calibration of Sinusoidal Encoder Signals
Precision positioning and manipulation systems often rely on data from sensors delivering a sinusoidal signal pair. These signals can be interpolated to provide a high resolution measurement. The paper presents a novel method for removing signal differences and drifts by automatic self-calibrating the sinusoidal signal pair. Then, manual calibration is avoided and slow varying effects, like the...
متن کاملIdentification of Exponentially Damped Sinusoidal Signals
A discrete-time internal model principle based adaptive algorithm for identifying signals composed of a sum of exponentially damped sinusoids is presented. The time varying state variables of an internal model principle controller in a feedback loop can provide estimates of the exponentially damped sinusoidal signal parameters, the damping factor and the frequency. By using additional integral ...
متن کاملTime Delay Estimation for Sinusoidal Signals
The problem of estimating the di erence in arrival times of a sinusoid received at two spatially separated sensors is considered. Given the sinusoidal frequency, a simple delay estimator using the phase di erence of the discrete time Fourier transforms (DTFTs) of the received signals is devised. With the use of periodogram, the algorithm is extended to estimate the delay when the frequency is u...
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: American Journal of Roentgenology
سال: 1973
ISSN: 0361-803X,1546-3141
DOI: 10.2214/ajr.118.2.293