Spectral shaping of Gaussian white noise for synthetic axion signal generation in microwave cavity haloscopes

This paper presents a method for generating synthetic axion waveforms by shaping Gaussian white noise in the frequency domain for microwave cavity haloscopes. The technique is designed for end-to-end calibration of receivers, validation of analysis pipelines, measurement of signal recovery efficiency, and blind-injection studies in dark matter axion searches. The approach provides a general framework applicable to various axion detection experiments using weak electromagnetic field signals generated through axion-photon conversion in static magnetic fields.