Performance of the Optimum and Several Suboptimum Receivers for Threshold Detection of Known Signals in Additive, White, Non-Gaussian Noise

The optimum and several suboptimum receivers for the detection of known signals in additive, white, non-Gaussian noise are identified. The performance of these nonlinear receivers is parametrically compared with the optimum Gaussian receiver using Middleton's Class B Noise Model. The performance of the extremely low frequency (ELF) receiver for the Propagation Validation System is shown to be within 0.5 dB of the optimum for high-level ELF noise.