A new method is proposed which can eliminate the starting oscillation of digital shock filter demodulation output in Asymmetric Binary Phase Shift Keying (ABSK) system,to enhance the transmission efficiency and reduce the transmitting power. In the method,the state parameter of the shock filter being stable by sending the training signals in advance,thus the filter can directly attains its stable working status,the transition data which always be discarded in practical communication is elimi-nated. There is no need to change the design and structure of the shock filter. The method is especially suitable for burst trans-mission with small data packets,such as WSN,PLC.%为了消除不对称二元相移键控（ABSK）数字冲击滤波器解调输出的起始振荡，提升传输效率，节省发射功率，提出一种消除数字冲击滤波器起始振荡的方法，该方法通过预先发送训练符号，使得冲击滤波器的状态参数达到稳定，从而直接进入稳定工作状态，消除了在实际通信中常被丢弃的过渡数据，此方法无需改变冲击滤波器的设计和结构，尤其适用于无线传感器网络、电力线载波通信等小数据包的突发通信系统。
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