差拍是指干涉波被接收输出后的信号反应。当两个不同频率的波信号相互作用而形成的周期性变化，幅值按两个频率之差周期性地增减，出现波幅度调制、上下起伏。电信号中存在这样的现象。
n. beating ; heterodyning
vt. beat
... 差分四相移相键控 Differential Quarter Phase-Shift Key DQPSK 差拍 heterodyne beat 拆单边 single side disconnection ...
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考虑到算法的复杂度，改进二范数差拍控制算法最具应用价值。
Considering the order of complexity, the proposed two norm beat control algorithm is most suitabel to be applied.
为了提高系统的跟踪准确度，笔者提出在线辨识参数的改进无差拍控制策略。
In order to improve the track accuracy of the system, the on-line identification parameter method is used and the parameters of controller can be corrected instantly.
为了提高FMCW雷达的距离测量精度，提出了一种基于差拍信号相位的距离估计方法。
The range measurement of the FMCW radar is based on the estimation of the frequency of the beat-note signal.
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