Title :
A frequency domain deterministic approach to channel identification
Author :
Manton, Jonathan H. ; Hua, Yingbo
Author_Institution :
Dept. of Electr. & Electron. Eng., Melbourne Univ., Parkville, Vic., Australia
Abstract :
This letter studies the problem of identifying a single-input single-output channel by linearly precoding the input. Although it is known that filterbanks induce cyclostationarity if the input is stationary, this work demonstrates that filterbanks induce a special form of spectral redundancy even if the input is deterministic. This frequency domain interpretation of filterbanks nicely characterizes all linear precoders. It not only helps to identify the strengths and aid in the design of linear precoders, it leads to frequency domain subspace methods for the identification of AR, MA and ARMA channels.
Keywords :
autoregressive moving average processes; autoregressive processes; equalisers; filtering theory; frequency-domain analysis; identification; moving average processes; telecommunication channels; AR channels; ARMA channels; MA channels; SISO channel; channel identification; cyclostationarity; filterbanks; frequency domain deterministic approach; frequency domain subspace methods; linear block precoders; single-input single-output channel; spectral redundancy; Additive noise; Algorithm design and analysis; Australia Council; Equalizers; Finite impulse response filter; Frequency domain analysis; Intersymbol interference; Nonlinear filters; Signal processing algorithms;
Journal_Title :
Signal Processing Letters, IEEE
