Abstract
SummaryIn this paper, a blind signal‐to‐jamming‐plus‐noise ratio (SJNR) estimation under typical tone‐jamming is proposed in a Rayleigh fading channel. Based on the differences among communication signal, jamming, and noise in cyclostationarity, the proposed algorithm obtained SJNR values by using different parts of the cyclic autocorrelation matrix of received signals and applying the minimum square error (MSE) method to estimate the communication signal power and jamming‐plus‐noise power, respectively. Through deriving the Cramer–Rao lower bound (CRLB) for the SJNR estimation, the normalized MSE performance is examined. Simulation results show that the proposed estimation performs better than the subspace‐based eigenvalue decomposition estimation on a normalized estimation bias, and its normalized MSE performance is also closer to CRLB. Copyright © 2016 John Wiley & Sons, Ltd.
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