The method research of beamforming with array-element failure

Array-elements can fail during their operation and this can seriously degrade the pattern of low sidelobe array considerably if not replaced on time. So it will be very important for us to deal with this kind of problem in the application of array signal processing. Based on the estimation of time delay and linear prediction, the output data of failure element are estimated and then the beamforming of deficient array is calculated using predicted data. The simulation results show that the sidelobe level is inhibited, and high directivity of the beamforming is achieved if we use estimated data to replace that the failed array elements had produced.