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STATISTICAL CONSIDERATIONS APPLICABLE TO COMMUNICATION SYSTEMS UTILIZING DISCRETE QUANTA
TRACERLAB INC WALTHAM MASS
THE CONDITIONS FOR OPTIMUM SIGNAL RECEPTION ARE CONSIDERED. It is shown that the optimum receiver will display various weighted running averages of the number of counts received. The forms of weighting factors are quantitatively considered according as to whether the background is low or high, and if it is high, whether it is known or unknown, whether extraneous signals are assumed to be present, and if so, the degree to which attempts are made to correct for them. The optimum shape for a single bit of information is then considered over the same set of conditions. A design of electronic apparatus proposed as suitable for optimum signal recognition is described and consists of a pulse integrator of arbitrary waveform, the latter being achieved as a weighted sum of successively higher order Poisson functions. A discussion of the statistical effects of x-ray coherence phenomena is appended, and these are seen to have a negligible influence on the behaviour of any realistically envisioned x-ray communications system. Author
AF30 602 2189