ABSTRACT

The radar ambiguity function is normally used by radar designers as a means of studying different waveforms. It can provide insight about how different radar waveforms may be suitable for the various radar applications. It is also used to determine the range and Doppler resolutions for a specific radar waveform. The three-dimensional (3-D) plot of the ambiguity function versus frequency and time delay is called the radar ambiguity diagram. The radar ambiguity function for the signal is defined as the modulus squared of its 2-D correlation function, i.e., . More precisely,

In this notation, the target of interest is located at , and the ambiguity diagram is centered at the same point. Note that some authors define the ambiguity function as . In this book, is called the uncertainty function.