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| Content Provider | ACM Digital Library |
|---|---|
| Author | Gracia, J. A. Huhn, R. M. |
| Abstract | It's all about timing. In the digital communications world it is necessary to transport information over distances great and small. In order to accomplish this, it becomes imperative that timing information be made available at the receiver so that the digital information can be recovered as error free as possible. Pulse stuffing synchronization is an established technique. Hardware has been built, deployed and is operating properly in the field. The lack of a precise understanding of the phase jitter characteristics of a pulse stuffing network has created problems when interfacing special digital equipment of this type in a digital communications system. In an effort to overcome this interface problem, it became necessary to develop a better understanding of the phase jitter characteristics as a function of the parameters associated with various pulse stuffing systems now available. This paper discusses a study which undertook such a task and in particular, addresses the role played by a simulation which was key in this study. The problem itself, much too difficult for mathematical analysis, was ideally suited for the combined simulation approach. The Multiplexer Jitter (MUXJIT) Simulator development was sponsored by the Defense Communication Engineering Center (DCEC) for the Defense Communication Agency (DCA) as part of contract DCA-100-76-C-0072 to conduct a systems analysis (and construct a supporting hardware simulator) of phase jitter characteristics in pulse stuffing time division multiplexer networks(4). The study effort was further enhanced by the construction of the hardware simulator which provided: a) verification of the preliminary mathematical and software simulation results, b) further depth by forcing the study to look at results from a hardware viewpoint, and 3) insight into hardware implementation limitations. This effort provides a benchmark for the role of a combined software simulation and a hardware simulation effort as well as a view of the software simulator role in bridging the gap between mathematical analysis and hardware breadboarding. |
| Starting Page | 800 |
| Ending Page | 810 |
| Page Count | 11 |
| File Format | |
| Language | English |
| Publisher | Association for Computing Machinery (ACM) |
| Publisher Date | 1977-01-01 |
| Access Restriction | Subscribed |
| Content Type | Text |
| Resource Type | Article |
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