Abstract: A method for compensating for lateral distortion in a moving linear array using a frequency domain beamformer, comprising the steps of measuring the instantaneous lateral distortion of the linear array at discrete points along the array, corresponding to array element locations, calculating a shading weight for each of the discrete points along the array, corresponding to array element locations based on the instantaneous lateral distortion at each said point and calculating the compensated beam magnitude by multiplying said shading weight into the frequency domain beamformer equation.

Abstract: A data driven method for coordinating the processing of arithmetic tasks in a multiple computer system having a multiplicity of arithmetic processors by determining whether an arithmetic task is in a blocked condition or is in an execution ready condition. A source distributed processor stores data in a local memory for processing by a local processor and then transfers the processed data to a global memory for buffering in preparation for subsequent processing by a destination distributed processor. The source distributed processor generates a produce message to a destination distributed processor to indicate that the data to be transferred is available in a buffer in the global memory. The destination distributed processor loads the data to be transferred from the buffer in the global memory and then generates a consume message to the source distributed processor to indicate that the data has been transferred from the global memory and the buffer in the global memory is now available.