摘要
传统的曼彻斯特解码往往是在信号连续波形的基础上进行的,即需要先对信号进行整形处理。在电磁随钻通信中,由于接收信号非常微弱,信噪比极低,对波形快速成功地解码有很大难度。详细介绍了某电磁随钻系统中的曼彻斯特解码算法应用,本解码算法是基于ADC采样的离散序列样本,可提高接收灵敏度,具有响应速度快、稳定性高等优点。
Traditional way of Manchester decoding is normally based on a continuous signal waveform. That is to reshape the signal wave at first. In the communication of electromagnetic measurement while drilling （EM-MWD） system, due to the weakness of signal and low SNR, it is difficult to decode rapidly and successfully. The algorithm application of Manchester decoding in an EM-MWD system was introduced. The algorithm is based on samples of discrete data sequences required from A/D converting, that can enhance the receiving sensitivity, having advantages like high response speed and high stability.
出处
《科学技术与工程》
北大核心
2015年第7期200-204,共5页
Science Technology and Engineering
基金
国家重大科技专项(Sino Probe-09-05)资助
