A performance analysis of adaptive line enhancer-augmented spectral detectors

This paper discusses the receiver operating characteristic performance of Adaptive Line Enhancer (ALE) augmented spectral detectors for sinusoidal signals in both stationary white Gaussian noise and in nonstationary noise. The detectors considered are based on the discrete Fourier transform (DFT) and include both cases with and without incoherent integration. Analytical expressions are provided for the detector output probability density functions in the stationary noise case. Extensive Monte Carlo simulation results are used to verify these expressions, and to treat the nonstationary noise case.