Synthesis of Ambiguity Functions for Complex Radar Signal Processing
This paper presents the study of ambiguity function (AF) when processing complex radar signals. In this work, the AF synthesis was performed considering nondetermined components and the presence of phase-frequency instability. The received result enhances the potentials for distinguishing an incoherent radar signal. The numerical simulation results of received AF are presented. Considering fluctuation components in the complex AF, depending on the laws of the distribution of amplitude and frequency fluctuations and their parameters, allowed to get the gain in the width of the main lobe from the units to tens of times. Paper represents original analytical expressions for AF of radio-signals modulated by narrow band random processes with various distribution laws.
ambiguity function; radar signal; frequency resolution; signal processing; tracking capability