Designing second-order Costas loops and PLL´s to track Doppler shift-analysis and optimization

Author

Rennert, Mordechai ; Bobrovsky, Ben-Zion

Author_Institution

Dept. of Electr. Eng.-Syst., Tel Aviv Univ., Israel

Volume

2

fYear

1995

fDate

14-16 Nov 1995

Firstpage

1313

Abstract

For coherent communications under Doppler shift conditions, the time it takes the receiver synchronization circuit to lose lock becomes a major concern. Design parameters optimization for both the Costas and PLL second-order carrier tracking loops under Doppler shift is presented for the case of a passive (imperfect integrator) loop filter. The optimization is made possible by using an extension of the Kramers (1940) expression for the mean time to lose lock (MTLL), which is an explicit function of both the Doppler shift and the phase jitter variance

Keywords

Doppler effect; Doppler shift; circuit optimisation; filtering theory; jitter; phase locked loops; tracking filters; Doppler shift tracking; PLL; coherent communications; design parameters optimization; imperfect integrator; mean time to lose lock; passive loop filter; phase jitter variance; second-order Costas loops; second-order carrier tracking loops; Band pass filters; Bandwidth; Design optimization; Doppler shift; Frequency synchronization; Jitter; Passive filters; Phase locked loops; Signal processing; Tracking loops;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 1995. GLOBECOM '95., IEEE

Print_ISBN

0-7803-2509-5

Type

conf

DOI

10.1109/GLOCOM.1995.502614

Filename

502614