基于FPGA的多功能信号源生成系统设计与实现

Design and Implementation of Multi-functional Signal Source Based on FPGA

为了满足科研与实验需要，提出并实现了一种以FPGA和高速D／A为核心，其结构简单，控制灵活，信号质量高的多功能信号源生成系统。该信号源生成系统能够实时产生中心频率在30～130MHz的各种雷达、通信、导航和白噪声等信号，且产生的各种信号频率、幅度、相位和其他参数均可控。信号源作为基带信号单元配以混频模块，可实现在任意频段的信号。另外，该信号源还可以作为一个通用平台，通过FPGA内部程序的更新来实现其他复杂信号。

This paper presents and makes a multi- functional signal source based on FPGA and high speed D/A which has simple configuration, flexible controlling, and top - quality signals to satisfy needs of the scientific research and experiment. This signal source can generate several signals as radar signals, communication signals, navigation signals, noise signals and so on. These signals have center frequency between 30～130 M Hz,its frequency, power, phase and other parameters are adjustable. This signal source can also as a baseband signal part assort with the mixer to generate signals in any band. Additional,this signal source also can produce other complicated signals using software program in ISE and download to FPGA.