Α-repetition/modulation and Blind Second-order Identification
نویسندگان
چکیده
In the context of redundant filter-bank precoders for blind second-order equalization, we consider the -repetition/modulation scheme. Although it is theoretically possible, the identification of a bandlimited communication channel suffers from numerical problems if is beyond a bound. If is below this bound, simulation examples illustrate the robustness of the channel estimate.
منابع مشابه
A subspace-based approach to blind channel identification in pulse shaping OFDM/OQAM systems
We introduce a subspace-based algorithm for the blind identification of time-dispersive channels in pulse shaping OFDM systems based on offset quadrature amplitude modulation (OFDM/OQAM). Our approach exploits cyclostationarity induced by the use of overlapping pulse shaping filters and uses second-order statistics only. The proposed method is similar in spirit to modulation-induced cyclostatio...
متن کاملتعدیل سطوح سرمی TNF-α متعاقب مصرف کافئین در پاسخ به یک وهله فعالیت مقاومتی وامانده‌ساز
Background and Objective: Since the results of some scientific data on positive effects of caffeine compounds on modulation the inflammatory symptoms have been reported, the present study was conducted to identify the effect of acute different doses of caffeine ingestion on serum tumor necrosis factor alpha (TNF-α) response following a single bout resistance exhaustive exercise in male volleyb...
متن کاملBlind identification of ARMA channels with periodically modulated inputs
Recent results have pointed out the importance of inducing cyclostationarity at the transmitter for blind identification of FIR communication channels. The present paper considers the blind identification problem of an ARMA(p; q) channel by exploiting the cyclostationarity induced at the transmitter through periodic encoding of the input. It is shown that causal and stable ARMA(p; q) channels c...
متن کاملSUPER-SYMMETRIC DECOMPOSITION of the FOURTH-ORDER CUMULANT TENSOR. BLIND IDENTIFICATION of MORE SOURCES THAN SENSORS
New ideas for Higher-Order Array Processing are introduced. The paper focuses on fourth-order cumulant statistics. They are expressed in an index-free formalism (that is believed to be of general interest) allowing the exploitation of all their symmetry properties. We show that, when dealing with 4-index quantities, symmetries are related to rank properties. The rich symmetry structure yields a...
متن کاملColumn-anchored zeroforcing blind equalization for multiuser wireless FIR channels
We propose a direct blind zeroforcing approach to cancel intersymbol interference (ISI) in multiple user finite impulse response (FIR) channels. By selectively anchoring columns of the channel convolution matrix, we present two columnanchored zeroforcing equalizers (CAZE), one without output delay and one with a chosen delay. Unlike many known blind identification algorithms, these equalizers d...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- IEEE Trans. Signal Processing
دوره 48 شماره
صفحات -
تاریخ انتشار 2000