Application of signals passively acquired by sensor are always restricted because of no much prior information

so an information fusion denoising method for multi-sensor based on ensemble empirical mode decomposition（EEMD） and time delay estimation is proposed.Firstly

signals acquired by multi-sensor are decomposed by EEMD

and obtained corresponding IMF components is cross correlated.Time delays are computed according to time delay vector close rule（TDVCR）

time delay vector error of corresponding IMF component is obtained.Finally

according to comprehensive support degree of multi-sensor to determine correspording weight

IMF components are reconstructed to obtain denoising signals.The experimental results show that this method effectively uses characteristic of multi-sensor time delay estimation based on EEMD

and signal noises under no prior information is reduced

and obtain satisfied effect.