单音频 meaning in English

mono-tone frequency

I has mainly discussed the sofeware and hardware of aribrary waveform generator controlled by the microcontroller in my with the control of the high proformance microcontroller - 80c196kc , this instrument builds up the main circuit adopting single tone and dac of ad9857 . in my project , i . have designed some special circuits with the advanced method of eda ( electron design automation ) based on vhdl and cpld . it can produce standard waveforms such as sine , square , triangle , and generate aribrary waveform according to the user ' s demand , at the same time , it has the ability to produce the amplitude modulation signal based on the carrier of sine and the aribrary waveform
论文中主要对微机控制的任意波形发生器的软硬件设计进行了相应的研究，该任意波形发生器以intel公司16位高性能单片机80c196kc作为控制器，分别利用了ad9857的单音频模式和dac模式组成正弦波和任意波产生的电路，在硬件电路的设计中采用了先进的eda (电子设计自动化)技术，使用vhdl语言和可编程门阵列器件对一些特殊的电路进行了设计。