Title :
Absolute calibration of RDSS channel based on autocorrelation
Author :
Cui Xiaozhun ; Liu Qingjun ; Fan Yonjun ; Zhong Zhaofeng ; Zhao Yi
Author_Institution :
Inst. of Spacecraft Syst. Eng., Acad. of Space Technol., Beijing, China
Abstract :
An absolute calibration method of RDSS (radio determination satellite service) channel is proposed. The RDSS signal is used as the test signal. The input and output for RDSS channel are sampled in synchronization. The sampling data is truncated and Hilbert transformed. The carrier rotation is done for the input or output data of the RDSS channel. The input data of RDSS channel is correlated with output data. After the peak of correlation is searching, the absolute delay of RDSS channel can be obtained. The propose algorithm need not make acquisition and tracking for spread spectrum signal. The calibration uncertainty is mainly dominated by the sampling frequency.
Keywords :
Hilbert transforms; calibration; correlation methods; satellite navigation; signal sampling; Hilbert transform; RDSS channel; absolute calibration method; autocorrelation method; carrier rotation; radio determination satellite service channel; sampling data; test signal; Radio Determination Satellite Service; absolute delay; autocorrelation; transmitting Channel;
Conference_Titel :
Signal Processing (ICSP), 2012 IEEE 11th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4673-2196-9
DOI :
10.1109/ICoSP.2012.6492013
