Fisher information based signal compression in TDOA estimation application

Author

Baroughi, Alireza Farrokh ; Shirazi, Ali-Asghar Beheshti

Author_Institution

Electr. Eng. Dept., Iran Univ. of Sci. & Technol., Tehran, Iran

fYear

2009

fDate

20-21 Oct. 2009

Firstpage

299

Lastpage

304

Abstract

In this paper, a method of compression based on Fisher-Information is introduced which is used in TDOA estimation application. The bit allocation of the method is based on lagrangian Multiplier, which is not computationally efficient, so we have proposed a new method for bit allocation which is more computationally efficient and its result is very close to the result of the lagrangian Multiplier method. In addition, by sending only the phase of the DFT coefficients instead of the real and imaginary parts of the coefficients we have better accuracy in TDOA estimation at the same compression rate.

Keywords

data compression; direction-of-arrival estimation; discrete Fourier transforms; stochastic processes; Fisher information; Lagrangian multiplier; TDOA estimation; bit allocation; discrete Fourier transforms; signal compression; Bit rate; Data communication; Discrete Fourier transforms; Lagrangian functions; Land mobile radio cellular systems; Optimization methods; Phase estimation; Propagation losses; Technological innovation; Time difference of arrival; Compression; Estimation; Fisher-Information; Time Difference of Arrival (TDOA);

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Conference, 2009. CSICC 2009. 14th International CSI

Conference_Location

Tehran

Print_ISBN

978-1-4244-4261-4

Electronic_ISBN

978-1-4244-4262-1

Type

conf

DOI

10.1109/CSICC.2009.5349334

Filename

5349334