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Missfle range instrumentation radars are capable of transmitting pulse code groups in which some of the pulses in each group can be used to convey information from the ground to a space vehicle containing a suitable beacon receiver and decoder. Thus, a one-way communication system is provided with only a small increase in ground and vehicle equipment over that required for the tracking function. Since the system is one way, communication reliability becomes of paramount importance. This paper presents a method of computing bit error rates, word error rates, and frame error rates as a function of the SNR at the beacon receiver. The SNR vs range can then be computed by standard methods to obtain the ground-to-vehicle ranges over which reliable communications can be conducted.
Randall M. Mealey (Tue,) studied this question.