The primary errors caused by an impedance mismatch are the frequency response and amount of squarewave ringing.
最初因为不正确的阻抗匹配所导致的数据错误值是在频响方面及方波震铃。
2
The squarewave signal is an extremely important source in the digital circuit, which could be produced in many ways.
方波信号是数字电路中非常重要的信号源，其产生方法有很多途径。
3
Using the optical chopper to modulate the detected light to make it related to the reference squarewave signal is a common method of locking phase detection of weak signals.