Accurate delay measurement of BPSK modulator for time transfer

Author

Cui Xiaozhun ; Xie Jun ; Wu Xiangjun ; Mi Hong ; Liu Chonghua

Author_Institution

Inst. of Spacecraft Syst. Eng., China Acad. of Space Technol., Beijing, China

Volume

1

fYear

2013

fDate

16-19 Aug. 2013

Firstpage

456

Lastpage

459

Abstract

BPSK (binary phase shift keying) modulator is widely applied for time signal modulating in time transfer. The delay measurement precision of BPSK modulator is the key factor of the time transfer precision. A high accurate delay measurement of BPSK modulator is developed. Input signal and output signal of BPSK modulator are up-sampled in synchronization. After digital signal processing is done for the sampling data, the delay of BPSK modulator can be obtained. The absolute uncertainty with the proposed algorithm is less than 0.2ns with the sampling frequency 10 G Sa/s.

Keywords

delays; phase shift keying; signal processing; BPSK modulator; accurate delay measurement; binary phase shift keying modulator; digital signal processing; input signal; output signal; synchronization; time transfer; Binary phase shift keying; Delays; Digital signal processing; Frequency modulation; Spread spectrum communication; BPSK modulator; circular correlation; delay measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronic Measurement & Instruments (ICEMI), 2013 IEEE 11th International Conference on

Conference_Location

Harbin

Print_ISBN

978-1-4799-0757-1

Type

conf

DOI

10.1109/ICEMI.2013.6743047

Filename

6743047