Performance model for square law detectors followed by accumulators and an ORing device

A mathematical model is developed to characterize the performance of square law detectors followed by accumulators and an ORing device. The performance of a Gaussian signal in Gaussian noise is determined for a specified number of channels ORed. The ORing loss is computed as a function of the number of samples in the accumulator preceding the ORing device for various fixed input signal-to-noise ratios (SNR) to the square law detector. It is concluded that the ORing loss decreases with an increase in the number of samples in the accumulator preceding the ORing device.