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Performance of the all-digital data-transition tracking loop in the advanced receiver
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Cheng, U. Hinedi, S. |
| Copyright Year | 1989 |
| Description | The performance of the all-digital data-transition tracking loop (DTTL) with coherent or noncoherent sampling is described. The effects of few samples per symbol and of noncommensurate sampling rates and symbol rates are addressed and analyzed. Their impacts on the loop phase-error variance and the mean time to lose lock (MTLL) are quantified through computer simulations. The analysis and preliminary simulations indicate that with three to four samples per symbol, the DTTL can track with negligible jitter because of the presence of earth Doppler rate. Furthermore, the MTLL is also expected to be large engough to maintain lock over a Deep Space Network track. |
| File Size | 651467 |
| Page Count | 12 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19900010124 |
| Archival Resource Key | ark:/13960/t9s22w41w |
| Language | English |
| Publisher Date | 1989-11-15 |
| Access Restriction | Open |
| Subject Keyword | Communications And Radar Digital Systems Signal To Noise Ratios Symbols Data Transmission Signal Processing Mathematical Models Phase Error Sampling Density Distribution Tracking Position Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
