Abstract :
Blind equalizers do not require any training sequence for the initial startup period but rather perform equalization blindly on the data directly. In this paper, a general approach for designing such equalizers for 8-VSB transmission systems is presented. The candidate algorithms considered here include Godard´s algorithm (Godard 1980), Sato´s algorithm (Sato 1975), the G-pseudo error algorithm using Sato´s function and the G-pseudo error algorithm using Godard´s function. This paper analyzes these algorithms for the 8-VSB transmission format and recommends the most suitable algorithm. The performance comparison parameters include MSE, convergence characteristics, computational load and accuracy of estimating the channel
Keywords :
convergence of numerical methods; digital television; equalisers; telecommunication standards; television standards; video signals; 8-VSB transmission format; 8-VSB transmission systems; DTV signals; G-pseudo error algorithm; Godard´s algorithm; MSE; Sato´s algorithm; blind equalizers; channel estimation accuracy; computational load; convergence characteristics; fast recovery equalization techniques; performance comparison; Airplanes; Algorithm design and analysis; Blind equalizers; Broadcasting; Demodulation; Digital TV; Frequency selective surfaces; Robustness; Switches; Timing;
