Method for shared estimation of parameters

Details Method for shared estimation of parameters Method for shared estimation of parameters

2006-12-26

2006-12-26

Phu, Phuong (Department: 2611)

Pulse or digital communications

Receivers

Interference or noise reduction

C375S226000, C375S230000, C375S229000, C375S350000

Reexamination Certificate

active

07154969

ABSTRACT:
A method for shared estimation of parameters (ε, φ, |C1|, C0, α, Δω) is described, which together with an error vector e(k), describe the connection between a digitally modulated reference signal inputted to a transmission channel and a received receiver signal z(k) which is at an end of the transmission channel. The method includes the following steps: forming the error vector e(k) in dependence of the parameters (ε, φ, |C1|, C0, α, Δω), a reference signal s(k), and the receiver signal z(k); linearizing the error vector e(k); substituting a real parameter of the linearized error vector through components of a estimation vector, wherein a substituted error vector is produced; inserting the substituted error vector into the cost function; and determining the estimation vector through gradient development of the cost function and subsequently setting the gradient to zero.

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Mashhour, Ashkan, Borjak, Assaad: A Method for Computing Error Vector Magnitude in GSM EDGE Systems—Simulation Results. In: IEEE Communications Letters, vol. 5, No. 3, Mar. 2001, pp. 88-91.

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