求翻译：由于研究人员分析信号特征时，为方便分析，都采用了正弦信号，且在2ASK调制方式中也是使用正弦波作为调制信号的载波，故在设计井下无线发射电路时应该设计正弦波产生电路。是什么意思？

As researchers analyze the signal characteristics, in order to facilitate the analysis, have adopted the sinusoidal signal, and in 2ASK sine wave modulation is also used as a carrier modulated signal, so in the design of underground radio transmitter should be designed to sine wave generating circui

The research staff to analyze signal characteristics, for ease of analysis, it also adopted the Sine signal ASK modulation mode, and 2 in the modulation signal is also used as a sine wave carrier, it is a well designed wireless transmission circuits should be designed at sine wave generated circuit.

Because the researcher analyzes time the signal characteristic, is the convenience analysis, all has used the sine signal, also also is uses the sine wave in the 2ASK modulation way to take the modulation signal the carrier, therefore when design mine shaft wireless transmission circuit should desig

As the researchers when analyzing the signal characteristics, in order to facilitate the analysis, have adopted the sinusoidal signal and 2ASK modulation is modulation signal using a sine wave as the carrier, therefore, in the design of underground wireless transmitting circuit design should be a si

Because when researchers analyze the signal characteristic, in order to facilitate analyzing, have adopted the sine signal, and use sinusoidal wave as the signal carrier to modulate signal in 2ASK modulates the way, so should design the sinusoidal wave to produce the circuit while designing launchin