Interference between the devices becomes the bottleneck of network throughput in wireless sensor network, but wireless interference does not necessarily result in the loss of all the information of the desired signal. Currently, many researchers exploit the interference information to assist with the parallel communication, and the identification of signature is a key point to these works. We apply a distribute construction and identification signature algorithm based on multi-hash policy with the characteristics of signal, which helps to improve the efficiency of wireless communication and increase the ability of signature identification and significantly decrease the time cost of the algorithm. We build a testbed based on USRP + GNU Radio to evaluate the algorithm, and the results show the construction and identification algorithm of signature is valid.