Performance of Acquisition in a Digital Matched-filter for DSSS

机译：DSSS数字匹配滤波器中的采集性能

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The digital Matched-filter(DMF) is studied extensively in order to derive the analytic expressions of the PseudoNoise (PN) code acquisition by one dwell decision and two dwell decision approaches respectively. Numerical analysis is also given. It is shown that the proposed circuit based on the DMF can accelerate the process of the PN code acquisition. Therefore, it is beneficial to the burst mode transmissions. Under the condition of low Signal Noise Ratio (SNR), the speed of PN code acquisition is sensitive to the threshold of detector. In such circumstance, the approach of the two dwell decision has better performance than the approach of one dwell decision.

机译：对数字匹配滤波器（DMF）进行了广泛的研究，以分别通过一种驻留决策方法和两种驻留决策方法来推导伪噪声（PN）码获取的解析表达式。还进行了数值分析。结果表明，所提出的基于DMF的电路可以加快PN码的获取过程。因此，对于突发模式传输是有益的。在低信噪比的情况下，PN码的获取速度对检测器的阈值敏感。在这种情况下，两次驻留决策的方法比一次驻留决策的方法具有更好的性能。

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来源
《IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications vol.2; 20050808-12; Beijing(CN)》|2005年|P.927-931|共5页
会议地点 Beijing(CN)
作者
TAN Xiao-heng;
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作者单位

College of Communication Engineering, Chongqing University, Chongqing, 400044, China;

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会议组织
原文格式 PDF
正文语种 eng
中图分类无线通信;
关键词
digital matched-filter (DMF); mean acquisition time; detection probability; false alarm probability;

机译：数字匹配滤波器;平均捕获时间;检测概率;误报概率;

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Performance of Acquisition in a Digital Matched-filter for DSSS

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