计算机应用研究2012，Vol.29Issue(10)：3865-3869,5.DOI:10.3969/j.issn.1001-3695.2012.10.069
基于滑动匹配功率谱分析的TD-SCDMA上行突发信号检测
Detection of TD-SCDMA uplink burst signal based on sliding match and power spectrum analysis
摘要
Abstract
For the problem of the TD-SCDMA uplink burst signal detection in low SNR, this paper proposed one algorithm, which used high-degreed correlation of the same midamble code. As the local midamble code match with the midamble code to receive the uplink burst signal sequences, there would appear residual carrier or DC signal ( residual carrier frequency is zero) components. As to strike the power spectrum of the residual carrier or the DC, a sharp peak would appear in the frequency position of power spectrum. By detecting the peak amplitude and the position, whether there was the certain code sequence midamble and the carrier modulation frequency could be accurately estimated. Studies have shown that: this method can effectively overcome the effects of residual frequency offset. The detection algorithm has a good effect, and can overcome the effects of residual frequency offset.关键词
TD-SCDMA/midamble码/功率谱/滑动匹配Key words
TD-SCDMA/midamble code/power spectral/slide match分类
信息技术与安全科学引用本文复制引用
周圣,张天骐,陈适,易琛..基于滑动匹配功率谱分析的TD-SCDMA上行突发信号检测[J].计算机应用研究,2012,29(10):3865-3869,5.基金项目
国家自然科学基金资助项目(61071196,61102131) （61071196,61102131）
国家教育部新世纪优秀人才支持计划项目(NCET-10-0927) （NCET-10-0927）
信号与信息处理重庆市市级重点实验室建设项目(CSTC2009CA2003) （CSTC2009CA2003）
重庆市杰出青年基金资助项目(CSTC2011jjjq40002) （CSTC2011jjjq40002）
重庆市自然科学基金资助项目(CSTC2009 BB2287,CSTC2010BB2398,CSTC2010BB2409,CSTC2010BB2411) （CSTC2009 BB2287,CSTC2010BB2398,CSTC2010BB2409,CSTC2010BB2411）
