Blind Despreading of the long-code Direct Sequence Spread Spectrum Signal
The problem of blind despreading of the long-code direct sequence spread signal is addressed in this paper. A novel algorithm applicable in blind despreading algorithm of the long-code direct sequence spread spectrum signal is presented in this paper. The algorithm exploits the structure of the signal and a monotone missing-data model subject to low rank is constructed. Based on the maximum likelihood estimate of the covariance matrix for this model, the spreading waveform is identified by eigen-decomposition. Simulations demonstrate that the proposed algorithm provides good results in the case of low signal-to-noise ratio (SNR). The proposed algorithm can be used in non-cooperation applications.
Huaguo Zhang Ping Wei
国际会议
2010 International Conference on Communications,Circuits and Systems(2010年通信、电路与系统国际会议)
成都
英文
425-427
2010-06-28(万方平台首次上网日期,不代表论文的发表时间)