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《Microelectronics》 2016-04
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Implementation of BOC Signal Acquisition Algorithm Based on DSP

CHEN Changchuan;YAN Zhenhua;ZHU Qiang;ZHANG Tianqi;Chongqing Key Lab of Signal and Information Processing,Chongqing Univ.of Posts and Telecom .;  
Aiming at the ambiguity in acquisition of the BOC modulation signal,which is caused by the multipeaks of auto-correlation function,an acquisition algorithm was proposed on the basis of composition principle and unique characteristics of auto-correlation function.Firstly,the effect of signal carrier frequency was eliminated.Then according to the correlation function calculation principle of BOC pseudo-code,two local signals were constructed to correlate with received signal.Finally,a new correlation function without sub-peaks was formed through simple mathematical operation by utilizing the symmetry of the correlation results.Theoretical analysis and simulation results showed that the new algorithm had higher main peak proportion,lower sub-peak proportion than ASPeCT algorithm and fractal-reconstruction algorithm.In the two_ray channel,its main peak power reached to100%in less than one chip of delay.Furthermore,TMS320C5509 Achip was used to verify the algorithm,which further showed the effectiveness of the algorithm.
【Fund】: 国家自然科学基金资助项目(61371164 61275099 61102131 61071196);; 信号与信息处理重庆市重点实验室建设项目(CSTC2009CA2003);; 重庆市杰出青年基金资助项目(CSTC2011jjj140002);; 重庆市自然科学基金资助项目(CSTC2012JJA40008);; 重庆市教育委员会科研项目(KJ120525 KJ130524);; 重庆市研究生科研创新项目(CYS14140);; 重庆邮电大学研究生教育创新计划重点项目(Y201001)
【CateGory Index】: TN967.1
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