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Acquisition time distribution for spread-spectrum receivers

机译:扩频接收机的采集时间分布

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摘要

Serial search spread-spectrum code acquisition is analyzed. A modified flow graph is presented. It permits the use of a generalized lock strategy and allows the false alarm time to be treated as a random variable. The distribution of acquisition time is obtained directly by using an extended generalization of Bernoulli trials. Compared to recent work which uses a fixed penalty false alarm time, the analysis is more general and requires fewer assumptions and approximations. The analysis is suitable for both single dwell and multidwell systems. Examples are presented to show the effect on the acquisition time distribution of sequence length and normalized detection threshold.
机译:分析了串行搜索扩频码的获取。提出了修改后的流程图。它允许使用通用锁定策略,并且可以将误警报时间视为随机变量。采集时间的分布是通过使用伯努利试验的扩展概括直接获得的。与使用固定惩罚错误警报时间的最新工作相比,该分析更加笼统,并且需要的假设和近似值更少。该分析适用于单驻留和多驻留系统。举例说明了对序列长度和归一化检测阈值的采集时间分布的影响。

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