Algorithm-based fault-tolerant techniques for MVDR beamforming

The authors present novel fault-tolerance schemes for 2-D systolic implementation of a recursive least squares minimization problem with applications to beamforming problems. They show that the errors can be detected by examining only a few scalars. In the case of the transient errors the technique is self-correcting. The technique can be implemented with negligible algorithm modification and little additional hardware. The simplicity of the method invites its use in future systolic arrays