METHOD FOR REDUCING THE INFLUENCE close in frequency noise on the estimate of the power narrowband signal

摘要

1. A method for reducing effect of close frequency noise power to the estimated narrowband signal comprising accumulation capacity and amplitudes weighting coefficient range, pick up on the basis of a priori information on interference :, where Cp - weights - accumulated power corresponding to a count of n, P - a sequence of power values ​​input signal representing the sum of the interference and narrowband signal, k - number of samples that determines the duration of the averaging interval ,, where, Cu - weighting factors - and accumulated amplitudes of corresponding count n, U- sequence of input signal amplitude values, wherein the accumulation interval to produce, relatively small frequency difference signal and interference, producing a primary signal evaluation calculation: ,, gdei- primary evaluation values ​​of the power, and then based on the performed simulation these primary additional correction otsenok.2. A method according to claim 1, characterized in that the correction is performed more primary estimates, using the superposition of power series ,, ii kombinatsiy.3 them. A method according to claim 2, characterized in that an additional correction of the primary count is performed using correlation ,, where Pei Pe - resulting power estimate and coefficients, b satisfy the following conditions: b∈ [0.7; 1.0], ∈ [1.5; 2.5].