The 35th annual conference on Astronomical Data Analysis Software & Systems 2025 in Görlitz, Germany

Accurate simulation of pulsar flux variability is critical for testing Square Kilometre Array (SKA)-scale interferometric pipelines. However, most existing simulators neglect the effects of integration time and related observational parameters, limiting their realism and utility for interferometric end-to-end testing. To address these shortcomings, we develop a Pulsar Simulator for SKA-scale interferometric observations (PulSKASim), which models pulsar flux evolution across frequency, amplitude, duty cycle, and phase, accounting for sampling period and total simulation time, and naturally models flux smoothing that arises from finite integration within each sampling period. PulSKASim generates synthetic measurement sets using functions in Oxford's SKA Radio telescope simulator (OSKAR), where each snapshot contains pulsars with controlled flux levels, enabling realistic per-time-slot experiments. This simulator allows for detailed assessment of calibration, imaging, and detection pipelines under realistic SKA-like conditions, bridging pulsar variability modelling with interferometric simulation in a way not achievable by existing tools.