The synchronous mode of bistatic radar system is studied, and a method is proposed to parameterize the transmitter synchronization signal by using the GPS second pulse time information.The receiver can receive the echo signal by the reconstructed synchronization signal with the parameters.This method avoids obtaining information from the direct wave, and can improve the sharing of the transmitter, thus any one of the receivers can share the same transmitter.Through experiments to navigation radar JMA2254, radar parameter reconstruction with no direct wave is realized,which achieve the desired experimental results.