👉 Interferogram is a mathematical concept in physics and astronomy. It refers to the set of all possible periodic solutions (or "interferograms") for a given system, such as a signal or waveform. These solutions are represented by complex-valued functions that describe the amplitude and phase of the signal over time. Interferograms can be used in various applications, including time series analysis, image processing, and communications systems. They provide a way to visualize and analyze the behavior of a signal or waveform