| 时频二维搜索捕获算法及其FPGA实现 |
| |
| 引用本文： | 吴高进,邹永忠,谭敏强. 时频二维搜索捕获算法及其FPGA实现[J]. 北京邮电大学学报, 2009, 32(3): 91-95 |
| |
| 作者姓名： | 吴高进 邹永忠 谭敏强 |
| |
| 作者单位： | 北京邮电大学,信息与通信工程学院,北京,100876;北京邮电大学,信息与通信工程学院,北京,100876;北京邮电大学,信息与通信工程学院,北京,100876 |
| |
| 摘 要： | 基于“多段匹配滤波器+FFT”的架构，提出并实现了一种新的适用于高动态下GPS (Global Positioning System)P码直捕的时频二维并行搜索算法，其新颖性在于采用“折叠滤波器+重排序RAM”的结构实现了多段匹配滤波器和在FPGA中全并行地实现了捕获算法。采用流水线结构的硬件实现表明，新算法占用的资源大约为原来的1/16。仿真结果和实际测试都表明该算法在GPS高动态下能更快完成P码直捕。
|
| 关 键 词： | 捕获 匹配滤波器 折叠滤波器 现场可编程门阵列 |
| 收稿时间： | 2008-09-18 |
| 修稿时间： | 2009-03-04 |
A Novel Acquisition Algorithm Based on Parallel Search in Time and Frequency Domain and FPGA Implementation |
| |
| WU Gao-jin,ZOU Yong-zhong,TAN Min-qiang. A Novel Acquisition Algorithm Based on Parallel Search in Time and Frequency Domain and FPGA Implementation[J]. Journal of Beijing University of Posts and Telecommunications, 2009, 32(3): 91-95 |
| |
| Authors: | WU Gao-jin ZOU Yong-zhong TAN Min-qiang |
| |
| Affiliation: | WU Gao-jin,ZOU Yong-zhong,TAN Min-qiang (School of Information , Communication Engineering,Beijing University of Posts , Telecommunications,Beijing 100876,China) |
| |
| Abstract: | Based on the framework of Multi-bank matched filter + FFT,a new acquisition algorithm is proposed and implemented to accelerate acquisition speed and decrease resources consumption,it is based on time and frequency domain parallel search and applicable to P code direct acquisition in global positioning system (GPS) high dynamic situation.Its advantage is multi-bank matched filter's implementation in the structure of folded filters + re-order RAM and its field-programmable gate array(FPGA) implementation in ... |
| |
| Keywords: | acquisition matched filters folded filters FPGA |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《北京邮电大学学报》浏览原始摘要信息 |
|
点击此处可从《北京邮电大学学报》下载全文 |
|
