本文介绍一种多通道虚拟信号发生器的设计和实现方法,该信号发生器采用“计算机 +PC 总线模板+软件”的模式进行设计,拥有众多的信号通道,便于在需多信号源的测控系统模拟装置中使用。 主题词:虚拟仪器,信号发生器,PC 总线模板 Abstract: In this paper, a multi-channel virtual signal generator is presented,which is designed based on "Computer + PC bus module+ Software" mode and whose signal channels can be applied to simulator that needs lots of signal channels. Key words: Virtual Instrument Signal Generator PC Bus Module