【作者】 吴明立； 赵保华； 屈玉贵； 刘桂英；

【Author】 WU Ming-li, ZHAO Bao-hua, QU Yu-gui, LIU Gui-ying (University of Science and Technology of China, Hefei 230027, China)

【机构】 中国科学技术大学；

【摘要】 在直扩编码的捕捉方法中,序贯捕捉法是一种较好的捕捉方法,与相关捕捉法相比其速度能提高2～10倍．为了对伪随机码进行更快速的捕捉,提出了一种新的捕捉结构,即并行序贯检测捕捉．该结构能在适当增加硬件规模的情况下,很好地提高捕获的速度．根据该结构可得出捕获时间和各参数的关系．更多还原

【Abstract】 In the acquisition ways of the direct sequence spread spectrum code, sequence probability ratio test(SPRT) acquisition is a better way, acquisition time reduced 2 to 10 times compared with cor relation acquisition. For faster acquiring pseudo noise(PN) code, a new acquisition structure-parallel SPRT acquisition is brought forward, namely parallel SPRT acquisition. It will improve the acquisition speed bigger if the hardware scale is appropriately added, and acquire the relation of acquisition time and parameters.更多还原