When testing onboard equipment of aircraft using navigation radar maps for navigation, there is a need for mathematical models of signals reflected from the earth’s surface and the sea surface. Traditionally, using theoretical constructions, such models were models of stochastic signals, the envelope fluctuations were described by the laws of Rayleigh and Rayleigh-Rice. These models were used both for simulating signals reflected from the earth’s surface, and for signals reflected from the sea surface. With low resolution of airborne radars, these models described the statistical characteristics of fluctuating signals quite well.

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