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  • 侯春宇,郭丽莉,熊蔚明.基于高速ADC和FPGA的IR-UWB相干接收机设计[J].电讯技术,2013,53(5): - .    [点击复制]
  • HOU Chun-yu,GUO Li-li,XIONG Wei-ming.Design of an IR-UWB coherent receiver based on high-speed ADC and FPGA[J].,2013,53(5): - .   [点击复制]
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基于高速ADC和FPGA的IR-UWB相干接收机设计
侯春宇,郭丽莉,熊蔚明
0
(中国科学院 空间科学与应用研究中心,北京 100190;中国科学院大学,北京 100190)
摘要:
为了探索超宽带(UWB)技术的空间应用,设计了一款脉冲无线超宽带(IR-UWB)的全数 字化相干接收机。本系统利用高速采样芯片ADC08D1000对IR-UWB信号进行双通道交织 采样,接下来利用Xilinx FPGA对采样数据进行降速处理。按照二分搜索、相干捕获 、脉冲跟踪的方案进行接收系统设计,并对该接收机进行了实际测试。最终实现了1 ns 脉宽的IR-UWB信号的正确接收和1 Mb/s码速率的OOK编码通信。
关键词:  卫星通信  高速采样  脉冲超宽带  二分搜索  相干捕获  脉冲跟踪
DOI:
基金项目:
Design of an IR-UWB coherent receiver based on high-speed ADC and FPGA
HOU Chun-yu,GUO Li-li,XIONG Wei-ming
()
Abstract:
In order to investigate the application of ultra wide-band (UWB) for satellite communication, a digital coherent receiver is designed for impuls e radio ultra wide-band (IR-UWB). In the system, dual-channel-interleaved-s ampling is used to digitize the analog IR-UWB by a high-speed ADC (ADC08D1000 ), and the sampled data is decelerated by Xilinx FPGA. IR-UWB signal is recei ved through binary-searching, coherent capturing and pulse tracking. The rece iver is tested and the result shows it can receive 1ns UWB pulse accurately and communicate at 1Mb/s.
Key words:  satellite communication  high-speed sampling  IR-UWB  binary search  coherent capt ure  pulse track
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