In radar theory, blurring and discrimination are two concepts that are both related and different. For multiple targets, blurring is indistinguishable. The resolution of the radar depends on the width of the main lobe in the center of the blur map. Radar ambiguity not only considers the width of the main lobe, but also considers the effect of the side lobes of the ambiguity. Therefore, before studying the radar resolution theory, we must first clarify a concept, which is the concept of the ambiguity function, which is the basis of the radar resolution theory.
First, the point target model of the radar echo signal is established:
The above is the theoretical derivation of the fuzzy function, and a more intuitive description of the fuzzy function is given below through MATLAB simulation. Through simulation, its fuzzy function is as follows:
