1. A method for detecting a target comprising: Receiving multiple radar signals of different resolution through a plurality of channels; said plurality of channels comprise at least a first channel and a second channel, said first channel receives the highest resolution signal of any channel of said plurality of channels; Accumulating radar sweep data from said series of lower resolution transmitted signals; Forming a continuous sum of N range cells by adding the magnitudes of N range cells; Updating the continuous sum as each sweep is performed by adding the magnitude of the newest range cell to the sum of the previous N range cells and subtracting the magnitude of the oldest range cell; Zeroing the continuous sum at the beginning of each sweep; Integrating accumulation data from each channel.