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| 一种基于长码扩频技术的无人机遥控链路实现 | |
| 引用本文： | 郭学玲,茹乐,付民. 一种基于长码扩频技术的无人机遥控链路实现[J]. 现代电子技术, 2012, 35(21): 25-27,30 |
| 作者姓名： | 郭学玲 茹乐 付民 |
| 作者单位： | 1. 95291部队装备部,湖南耒阳,421000 2. 空军工程大学航空航天工程学院,陕西西安 710038;大唐电信科技产业集团博士后工作站,北京100191 3. 空军工程大学航空航天工程学院,陕西西安,710038 |
| 基金项目： | 陕西省自然科学基金(2009JM8001-4) |
| 摘 要： | 为了满足无人机遥控链路远距离、高动态、强抗干扰能力的军事通信需求,设计了基于长码直接序列扩频技术的FPGA实现方案.该方案采用了一种基于FFT算法的快速伪码捕获方法,将传统的伪码相位与多普勒频移二维搜索过程简化为两者同时捕获的一维搜索过程.经过硬件实现与测试,该方案可有效减少硬件资源消耗,同时缩短捕获时间. |
| 关 键 词： | 无人机遥控链路 直接序列扩频 长码捕获 FPGA |
Implementation of UAV remote control link based on long code spread spectrum technology |
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| GUO Xue-ling , RU Le , FU Min. Implementation of UAV remote control link based on long code spread spectrum technology[J]. Modern Electronic Technique, 2012, 35(21): 25-27,30 | |
| Authors: | GUO Xue-ling RU Le FU Min |
| Affiliation: | 1.Armament Department of Unit 95251 of PLA,Leiyang 421000,China; 2.Aeronautics and Astronautics Engineering Institute,Air Force Engineering University,Xi’an 710038,China; 3.Postdoctoral Workstation of Datang Telecom Technology Industrial Groups,Beijing 100191,China) |
| Abstract: | A FPGA implementation scheme is designed based on long code direct sequence spread spectrum technology to meet the demands of long-range,high-dynamic and strong anti-jamming abilities of the UAV remote control link used in military communication domain.The scheme adopts a rapid PN-code acquisition method,based on FFT arithmetic,to simplify the traditional two-dimensional search process depending on PN-code phase and Doppler frequency shift to one-dimensional search progress which can capture the both at the same time.The hardware testing proves that the scheme can reduce the loss of hardware resource effectively,and at the same time shorten the time of acquisition. |
| Keywords: | UAV remote control link direct sequence spread spectrum long code acquisition FPGA |
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