Abstract:Based on the periodicity that the signals which are gotten by doing delay-multiply with the Direct Sequence Spread Spectral (DSSS) signals, the paper proposes an efficient method for the detection of DSSS signals: the detection, symbol period and chip width estimation of DSSS signals based on delay-multiply, correlation and spectrum analysis. The computer simulations show that it can not only fit the need of the low signal to noise ratio which is quite common in the detection of DSSS signals, but also can give the estimations of the symbol period and chip width in a simple way. Especially, the method proposed in the paper can enhance the precision of the symbol period estimation by increasing the processed sampling data when the sampling rate is fixed, which is very important for the detection of DSSS signals.
董占奇; 胡捍英; 于宏毅. 基于延迟相乘-相关及谱分析的直扩信号检测与符号周期、码片时宽估计分析[J]. 电子与信息学报, 2008, 30(4): 840-842 .
Dong Zhan-qi; Hu Han-ying; Yu Hong-yi . The Detection, Symbol Period and Chip Width Estimation of DSSS Signals Based on Delay-Multiply, Correlation and Spectrum Analysis. , 2008, 30(4): 840-842 .