首页> 外文会议>Annual Allerton Conference on Communication, Control, and Computing vol.2; 20050928-30; Monticello,IL(US) >A Low Complexity Circuit Architecture for Rapid PN Code Acquisition in UWB Systems Using Iterative Message Passing on Redundant Graphical Models
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A Low Complexity Circuit Architecture for Rapid PN Code Acquisition in UWB Systems Using Iterative Message Passing on Redundant Graphical Models

机译:一种在冗余图形模型上使用迭代消息传递的,用于UWB系统中快速PN码获取的低复杂度电路架构

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Rapidly acquiring the code phase of the spreading sequence in an ultra-wideband system is a very difficult problem. In this paper, we present a new iterative algorithm and its hardware architecture in detail. Our algorithm is based on running iterative message passing algorithms on a standard graphical model augmented with multiple redundant models. Simulation results show that our new algorithm operates at lower signal to noise ratio than earlier works using iterative message passing algorithms. We also demonstrate an efficient hardware architecture for implementing the new algorithm. Specifically, the redundant models can be combined together so that memory usage can be reduced substantially. Our prototype achieves a combination of performance and complexity not possible with traditional approaches.
机译:在超宽带系统中快速获取扩展序列的码相位是一个非常困难的问题。在本文中,我们详细介绍了一种新的迭代算法及其硬件体系结构。我们的算法基于在具有多个冗余模型的标准图形模型上运行迭代消息传递算法。仿真结果表明,与使用迭代消息传递算法的早期工作相比,我们的新算法在较低的信噪比下工作。我们还演示了用于实现新算法的高效硬件体系结构。具体而言,可以将冗余模型组合在一起,从而可以大大减少内存使用量。我们的原型实现了传统方法无法实现的性能和复杂性的结合。

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