基于可编程器件的通信检测系统接口设计

发布时间：2018-01-23 02:34

本文关键词： 通信检测可编程器件回波抵消数/模转换数据采集　出处：《电子技术应用》2014年10期 　论文类型：期刊论文

【摘要】：针对某型通信设备检测需求,借鉴虚拟仪器设计结构,以通用计算机和多功能检测接口组成检测系统。检测接口电路使用可编程器件提高检测接口的自动化程度,以FPGA为核心单元,通过DAC和ADC完成激励信号的生成和响应信号采集,并使用混合电路完成回波抵消实现检测接口的收发双工,解决了检测系统无法实时收发的问题。描述了检测接口的设计过程,给出了硬件设计电路和FPGA程序结构框图,详细分析了以高性能运算放大器为基础设计的差分放大电路、混合电路、信号调理电路的工作原理和实现方法,对于类似系统和电路的设计有一定的参考价值。
[Abstract]:According to the testing requirements of a certain communication equipment, the design structure of virtual instrument is used for reference. The detection system is composed of a universal computer and a multi-function detection interface. The detection interface circuit uses programmable devices to improve the automation of the detection interface, and the core unit is FPGA. The excitation signal is generated and the response signal is collected by DAC and ADC, and the mixed circuit is used to complete the echo cancellation to realize the transceiver duplex of the detection interface. The design process of the detection interface is described, and the hardware design circuit and FPGA program block diagram are given. The working principle and realization method of differential amplifier, mixed circuit and signal conditioning circuit based on high performance operational amplifier are analyzed in detail, which have certain reference value for the design of similar system and circuit.
【作者单位】：军械工程学院信息工程系;
【分类号】：TP334.7
【正文快照】： 0引言为提高对通信检测设备的灵活性和升级性,本文借鉴虚拟仪器结构,设计某型基层级检测系统,用于对通信设备进行快速检测[1]。使用通用计算机和多功能检测接口构建硬件平台,检测接口用于接收计算机生成的数字激励信号和将采集到的通信设备响应信号转换为数字信号传送到计算机

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