Journal of University of Chinese Academy of Sciences >
2012 >Issue 2: 240 - 245
Acquisition method with spread spectrum technique based on GPU acceleration
Received date: 2010-12-02
Revised date: 2011-03-18
Online published: 2012-03-15
The acquisition of spread spectrum signal is an important part of the DSSS(direct sequence spread spectrum) receiving system.For solving the existing problems such as heavy calculation and low speed, the acquisition method based on the GPU acceleration is proposed. The acquisition method based on the cyclic correlation is converted into the process of CUDA thread blocks, and then the process of acquisition is executed completely through GPU. The simulation results show that the method based on GPU improves the executive efficiency of DSSS systems.
Key words： code acquisition; cyclic correlation method; GPU; CUDA
CHEN Yuan , WANG Yuan-Qin , LIU Ying . Acquisition method with spread spectrum technique based on GPU acceleration[J]. Journal of University of Chinese Academy of Sciences, 2012 , (2) : 240 -245 . DOI: 10.7523/j.issn.2095-6134.2012.2.014
[1] Yang J,Xing K F,Yang B,et al. Fast acquisition for distance measurement with spread spectrum technique based on FPGA[J].Chinese Journal of Electron Devices, 2003,26(4):404-409 (in Chinese). 杨俊,邢克飞,杨波,等.基于FPGA的扩频测距快速捕获方法研究[J].电子器件,2003,26(4):404-409.
[2] NVIDIA. NVIDIA CUDA programming guide version 1.1. (2007-01). http:www.nvidia.com/object/cuda_home.html.
[3] Timo Balz, Uwe Stilla. Hybrid GPU-based single-and double-bounce SAR simulation //IEEE Trans Geosci Remote Sens. 2009:3519-3529.
[4] Tan K, Liu H, Zhang J S, et al. Sora: high performance software radio using general purpose multi-core processors[J]. Communications of the ACM, 2011, 54(1):99-107.
[5] Ye Z F,Wu T,Xu X. Software radio structure of direct sequence spread spectrum system and its performance analysis[J]. Acta Electronica Sinica,2001, 29(1): 120-123(in Chinese). 叶中付,吴涛,徐旭. 扩频通信系统的软件无线电实现结构及性能分析[J].电子学报,2001,29(1):120-123.
[6] Shams R,Barnes N. Speeding up mutual information computation using NVIDIA CUDA hardware //Proc of Digital Image Computing: Techniques and Applications.2007:555-560.
[7] Harris M.Optimtizing parallel reduction in CUDA.(2007-11). http://www.nidia.com\\object\\cuda_home.html.
[8] Yang J,Yang B,Wang Y K. Carrier-frequency capture of DSSS communication with high doppler in low SNR environment and its palmotop DSP platform[J].Journal of Data Acquisition & Processing, 2004,19(2):174-179(in Chinese). 杨俊,杨波,王跃科.大频移低信噪比下扩频通信的载波提取及其DPS实现[J].数据采集与处理,2004,19(2):174-179.
/
| 〈 |
|
〉 |