Three Parametric Model Third-Order Software Phase-Locked Loop and its Application in Range Measuring System
In order to improve the precision of side tone range measuring and realize the range measuring process by software, one kind of three parametric model third-order software phase-locked loop (SPLL) is designed based on three parametric loop filter model and the predominant closed-loop poles theory, which can apply the parameter setting principles of the second-order phase-locked loop; this kind of third-order SPLL is realized through C++ language programming and used as the range measuring system’s side tone phase-locked loop(PLL) to process the experiment data. The results indicates that the precision of phase measuring and capture time satisfy the system’s index.
X. M. Hou and Y. Wang, "Three Parametric Model Third-Order Software Phase-Locked Loop and its Application in Range Measuring System", Advanced Materials Research, Vols. 383-390, pp. 5250-5256, 2012