Abstract
Optimal sounding sequences described by a pair of mutually symmetric Golomb rulers lasting from 12 to 18 pulses were synthesized within the generalization of the previously developed 13-pulse sounding sequence of SuperDARN radars. These sequences are pairs of identical sequences that are mutually symmetric in time, are separated by a lag, and do not contain an additional pulse used earlier to measure the power profile of the scattered signal. The optimal subsequences are sought by exhaustive search over the class of optimal and nearly optimal Golomb rulers. The optimality criterion is provision of the maximum information content of the received signal in the sense of a high spectral resolution with minimum accumulation time, as well as the requirement of its efficiency for measuring the power profile of the scattered signal. The work demonstrated the potential efficiency of one of the constructed signals (16-element one) for spectral measurements using the Ekaterinburg coherent decameter radar.
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