A new signal quality degradation monitor for digital transmission channels

• Published in: IEEE transactions on communications Vol. 43; no. 2/3/4; pp. 1333 - 1336
• Main Authors: Nohara, T.J., Premji, A., Seed, W.R.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01-02-1995; Institute of Electrical and Electronics Engineers
• Subjects: Applied sciences; Communication channels; Computerized monitoring; Degradation; Distortion; Exact sciences and technology; Jamming; Signal processing; Stress; Systems, networks and services of telecommunications; Telecommunications; Telecommunications and information theory; Transmission and modulation (techniques and equipments); Transmitters; Measuring system; Error rate; Transmission channel; Automatic monitoring; Performance; Signal detection; Digital transmission
• ISSN: 0090-6778; 1558-0857
• DOI: 10.1109/26.380181

An innovative approach to the automatic monitoring of signal quality on digital transmission channels such as communication links is presented. A communication channel is said to be experiencing some form of stress when the channel (and hence the signal) is distorted from nominal conditions. The stress may be the result of a variety of sources such as transmitter and receiver equipment errors, ionospheric effects, tropospheric effects, and jamming. A new monitor, the DEGRAD (Digital Eye Gridded Receiver with Arbitrary Degradation) monitor, is developed that is better able to detect and identify channel degradations before a significant change in signal quality is noticed by the end user.< >