摘要
针对某型磁性材料性能测试仪激励恒流源的具体要求,采用了基于直接数字频率合成技术的信号发生器设计方法,重点研究了由FPGA设计DDS信号发生器的系统设计原理、硬件构成,以及在Quartus开发环境下,采用硬件描述语言Verilog HDL完成信号发生器的累加器、波形存储表、幅度控制及滤波控制功能,并使用Modelsim进行仿真分析。实验结果表明,该信号发生器能较好地产生所需激励信号,符合设计技术指标。
This paper introduces a new design method of designing the signal generator based on DDS in view of the specific requirements of excitation signal source for a certain type of magnetic material test equipment.On the basis of Altera Corporation＇s FPGA device,the design elements,hardware of the signal source as well as its realization in Quartus are given.The result shows that the signal generator can generate the required excitation signals preferably and meet the technical specifications of the design.
出处
《电子科技》
2011年第6期108-111,共4页
Electronic Science and Technology
