CAJ | 학술논문

无论是实现直扩信号的盲解扩还是扩频码序列恢复,严格的同步都是算法的关键,同步精度对扩频码序列估计的误码性能有着重要影响。为此提出了一种基于相关脉宽峰值搜索的直扩信号盲同步算法,仿真分析表明,该算法能够较好运用于低信噪比条件下直扩信号的同步点估计。
무론시실현직확신호적맹해확환시확빈마서렬회복,엄격적동보도시산법적관건,동보정도대확빈마서렬고계적오마성능유착중요영향。위차제출료일충기우상관맥관봉치수색적직확신호맹동보산법,방진분석표명,해산법능구교호운용우저신조비조건하직확신호적동보점고계。
Not only blind de-spread spectrum of DS signals, but also reconstruction of PN sequence, the strict synchronization whose precision infects the BER of PN sequence greatly, is the key factor. The blind synchronization algorithm of direct sequence spread spectrum signals based on maximum width of autocorrelation peak is proposed. Simulations show that the algorithm is applied on the estimation of the synchronization point preferably in low SNR.