Compared to narrowband radar, broadband radar has a larger signal bandwidth and higher range resolution, making it easier for maneuvering targets to form cross range unit movement and Doppler dispersion phenomenon during different frame period. The frequency domain compensation method is used for cross range unit walk correction between radar echo pulses, and the ChirpZ transform algorithm is applied for Doppler dispersion correction. Then, interframe correlation processing is performed to improve the signal-to-noise ratio and improve the detection and tracking performance of broadband radar. The effectiveness of the wideband radar inter frame correlation processing algorithm has been verified through simulation.