PCM Data Reliability Monitoring Through Estimation of Signal-to-Noise Ratio
PCM Data Reliability Monitoring Through Estimation of Signal-to-Noise Ratio
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DOI：
10.1109/tcom.1968.1089851
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发表时间：
1968-06
影响因子：
8.3
通讯作者：
R. Gagliardi;C. Thomas
中科院分区：
文献类型：
--
作者：
R. Gagliardi;C. Thomas
相干传输系统中数字脉冲编码调制 (PCM) 数据的可靠性监控可以基于接收器处信噪比 (SNR) 的在线估计。分析最大似然 SNR 估计以确定估计器的结构及其以给定置信度监控错误率的能力。特别是，建立了估计置信区间、观察时间、单词错误率和 PCM 单词结构之间的关系。
Reliability monitoring of digital pulse-code modulation (PCM) data in coherent transmission systems can be based upon online estimation of signal-to-noise ratio (SNR) at the receiver. Maximum likelihood SNR estimation is analyzed to determine the structure of the estimator and its ability to monitor error rates with a given degree of confidence. In particular, relationships between estimation confidence intervals, observation time, word error rates, and PCM word structure are developed.