Title :
Frequency difference of arrival accuracy
Author :
Otnes, Robert K.
Author_Institution :
Maxim Technol. Inc., Santa Clara, CA, USA
fDate :
2/1/1989 12:00:00 AM
Abstract :
The problem considered occurs in the geolocation of a fixed emitter using observations from two moving collectors. Estimates for the time difference and frequency difference of signal arrivals are used. Frequency difference of arrival (FDOA) is estimated through the use of a mixing product. Standard regression analysis procedures are then applied to estimate the slope of the unwrapped phase angle. The derivation of an expression for the standard error of FDOA is given, and this result is related to several other well-known results
Keywords :
signal processing; spectral analysis; arrival accuracy; fixed emitter; frequency difference; geolocation; mixing product; moving collectors; observations; regression analysis; signal processing; slope estimation; time difference; unwrapped phase angle; Acoustic signal processing; Delay effects; Delay estimation; Filtering; Frequency estimation; Narrowband; Phase estimation; Phase modulation; Regression analysis; Speech processing;
Journal_Title :
Acoustics, Speech and Signal Processing, IEEE Transactions on
