太赫兹科学与电子信息学报, 2018, 16 (3): 436, 网络出版: 2018-07-24
基于现场可更换组件结构的宽带波形产生设计
Design of wideband wave generation based on the LRM framework
数模转换器 (DAC) 现场可更换组件 (LRM) 宽带波形产生 现场可编程逻辑阵列 (FPGA) Digital toAnalog Converter(DAC) Line Replaceable Module(LRM) Ultra WidebandWaveform Generation(UWG) Field -Programmable Gate Array(FPGA)
摘要
给出了一种基于现场可更换组件 (LRM)结构的 4通道宽带波形产生板卡设计。板卡上集成了一款高性能的现场可编程逻辑阵列 (FPGA)以及 4片高速数模转换器 (DAC)芯片。DAC和 FPGA之间为高速低电压差分信号 (LVDS)接口, 板卡输入输出接口选用标准二代 LRM连接器。 DAC采样率为 4 Gsps, 在 2.4 GHz中频(IF)上瞬时带宽达到了 1.2 GHz, 信噪比 (SNR)优于 50 dB。该设计可广泛应用于电子战和宽带雷达系统中。
Abstract
A design of 4-channel wide band wave generation based on the Line Replaceable Module (LRM) framework is presented. The card integrates a high performance FPGA and 4 Digital Analog Converter(DAC) chips. The DAC and FPGA connect each other by the Low Voltage Differential Signaling (LVDS) interface. The input and output interface of the board utilizes a 2nd generation LRM connector. The DAC sampling rate is 4 Gsps. The instantaneous bandwidth is up to 1.2 GHz at 2.4 GHz Intermediate Frequency(IF) output, and the Signal-to-Noise Ratio(SNR) is better than 50 dB. It can be applied to the radar EW and the wideband digital receiver.
陈勇, 谭剑美. 基于现场可更换组件结构的宽带波形产生设计[J]. 太赫兹科学与电子信息学报, 2018, 16(3): 436. CHEN Yong, TAN Jianmei. Design of wideband wave generation based on the LRM framework[J]. Journal of terahertz science and electronic information technology, 2018, 16(3): 436.
PDF全文
