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Algorithm for estimating energy characteristics at the output of the correlator

For the operation of the channels for tracking the carrier (phase and frequency) and the envelope of the signal of the primary processing of the navigation equipment, it is necessary to evaluate, in one way or another, the energy parameters at the output of the correlator: the amplitude of the signal component and the dispersion at the output of the correlator. In practice, to estimate the amplitude of the signal component, either the real part or the modulus of the complex correlator is used over the entire grouping interval. These approaches have a number of disadvantages. To estimate the variance of the correlator output, it is necessary to select separate channels in which there is obviously no useful signal, which takes away some part of the hardware resources. The article proposes an algorithm for estimating the energy parameters at the output of the correlator only from the data of the corresponding channel without the formation of special correlators, which is operable in both coherent and incoherent modes and is based on the use of correlation integrals over short and full intervals. Modeling and analysis of the accuracy characteristics of the proposed algorithm is carried out.