Abstract: The co-channel interference between Multi-radar signals is a key problem of the electromagnetic compatibility andinterference (EMC/EMI) facing with by radar sensor networks and other multi-radar cooperative systems. Traditional methods offrequency-agile and code-diversity which are suitable for narrow-band radar can not effectively eliminate the co-channelinterference among high resolution wideband radars. This paper presents a composite design method of waveform and timediversity. Through the hybrid structure of multiple random pulse position coding, pseudo-random sequence of multi-array pulse compression and pulse accumulation to provide a solution to the co-channel interference among the wideband radar. Simulationresults show that the proposed scheme has obviously capability of suppression interference when the ratio of signal to co-channelinterference is greater than-30dB. Numerical results also demonstrate the validity and efficiency of the waveform design scheme.