We carried out the synthesis and analysis of quasi-likelihood detection and estimation algorithms of band low-frequency Gaussian pulse with unknown time 84 O. V. Chernoyarov et al. delay, mathematical expectation and dispersion and inaccurately known duration, observed against white noise and band Gaussian disturbance with unknown intensity. While synthesizing receiving devices, we realized the adaptation to the intensities of active hindrances. Then we considered the influence of anomalous errors on the accuracy of time delay estimate. We also set the functionality of offered detector and measurer and the applicability boundaries of asymptotically exact formulas that characterize them through statistical modeling methods.