Double-Channel Tracking Performance Study in Spaceflight Testing & Controlling

Zheng Liu, Fu’an Sun, Peng Lv

Abstract


The characteristic of double-channels tracking are with simple equipment, and high reliability. So it is applied to wide range in spaceflight testing & controlling system. AGC, time constant and sub & sum channel phase, has enormous influence on the function of double-channel tracking. When AGC the signal was chose inappropriate, the amplitude of double-channels channel signal will be in distortion. The sub signal will be damaged when double-channels channel signal and the differential & sum channel phase are not the same. And the modulation degree of double-channels signal will be decreased. Through analysis the basis of AGC time constant and the influence that differential & sum channel phase on double-channels tracking performance. It gives the principle and experienced dates for choosing AGC time constant, and it also introduces the methods and features of phase correction.

Keywords


double channels, time constant,


DOI
10.12783/dtetr/mcaee2020/35063

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