An intelligent method for ultrashort wave signal reconnaissance guidance and defense based on wireless signal feature parameter extraction is proposed, all-weather unmanned intelligent reconnaissance of enemy target signals is achieved. Firstly, the signal is autonomously detected to identify effective signals, and then feature parameters are extracted. Based on the wireless signal feature parameters, the frequency and phase synchronization of blind signals is intelligently completed, thereby achieving intelligent reconnaissance, guidance, and control of ultrashort wave broadband signals.