Analysis of phase noise impact on velocity measurement in TT&C systems

Jing Xi

doi:10.1117/12.2635836

5 May 2022 Analysis of phase noise impact on velocity measurement in TT&C systems

Jing Xi

Proceedings Volume 12245, International Conference on Cryptography, Network Security, and Communication Technology (CNSCT 2022); 1224502 (2022) https://doi.org/10.1117/12.2635836
Event: International Conference on Cryptography, Network Security, and Communication Technology (CNSCT 2022), 2022, Sanya, China

Abstract

In telemetry, tracking, and control (TT&C) systems, noises can impact the frequency stability and therefore cause errors in velocity measurement. Allan variance is used to characterize the frequency stability in the time domain. In the frequency domain, spectral density of phase fluctuation is utilized in theoretical analysis, whereas phase noise is used in practical engineering. Therefore, when calculating the velocity measurement errors caused by phase noise, a conversion between the time domain expression and the frequency domain expression is needed. This work presents the corresponding relationship between the time domain and the frequency domain representation of frequency stability, and then derives a convenient way to estimate the impact of phase noise on velocity measurement errors. At last, with common TT&C equipment being taken as examples, simulations are given to show how phase noise impacts the velocity measurement precision in practical engineering.

Citation Download Citation

Jing Xi "Analysis of phase noise impact on velocity measurement in TT&C systems", Proc. SPIE 12245, International Conference on Cryptography, Network Security, and Communication Technology (CNSCT 2022), 1224502 (5 May 2022); https://doi.org/10.1117/12.2635836

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