Frequency domain solution time delay fuzzy method for deep space antenna
An antenna array, frequency domain technology, applied in the field of deep space antenna array frequency domain time delay ambiguity resolution, can solve the problems of time delay ambiguity, influence delay accurate correction, different transmission paths, etc., to get rid of transition dependence, guarantee The effect of precision
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[0010] refer to figure 1 . exist figure 1 In the described process of solving delay ambiguity in the frequency domain: according to the approximate geometric orientation between the spacecraft and the ground station, the initial delay range between the receiving channels of the antenna array is given, and the phase spectrum in the frequency domain is calculated according to the initial delay. Fuzzy frequency range; then obtain a precise estimate of the time delay by curve fitting within this range, and correct the time delay between channels according to the estimated result; according to the correction accuracy of the time delay, obtain the frequency at which the phase spectrum in the frequency domain is not ambiguous range, and then obtain a further fine estimate of the time delay through curve fitting within this range, and correct the time delay between channels according to the estimated result; if the time delay correction accuracy meets the requirements, exit, otherwis...
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