Title :
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
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;
Conference_Titel :
Electronic Measurement & Instruments (ICEMI), 2013 IEEE 11th International Conference on
Conference_Location :
Harbin
Print_ISBN :
978-1-4799-0757-1
DOI :
10.1109/ICEMI.2013.6743047
