NEW PSEUDO RANDOM BINARY SEQUENCE PHASE SHIFT KEYED SIGNALS FOR ELECTRICAL MEASUREMENT |
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| Ian A. Henderson |
- Abstract:
- The two well known digital signals used in system identification are the squarewave and Pseudo Random Binary Sequence (PRBS) signals. In data measurement, symbols with the aid of the identification coding theorems are used to capture information using an identification channel. Previously signal engineering design techniques involving descriptive languages, symbolic codes, shift keyed symbols were used to design new sets of test signal, which were based on the squarewave. These symbols are used to form digital signals for narrowband or wideband multifrequency testing. In this paper, symbolic codes are used to simplify the description of PRBS signals. Phase shift keyed modulation is then used to design new band limited PRBS test signals using a 15 bit Maximum length (M) PRBS. In narrowband frequency response measurement, the bandwidth of these new PRBS signals may be adjusted with the aid of a zoom factor. A new approach to the symbolic description of these phase shift keyed signals is given. It simplifies the software production of these test signals from their measurement zoom codes.
- Keywords:
- Multifrequency digital testing, Phase shift keyed modulation, Symbolic codes, Band limited PRBS
- Download:
- IMEKO-TC4-2001-002.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC4
- Event name:
- TC4 Symposium 2001
- Title:
11th IMEKO TC4 Symposium on Trends in Electrical Measurements and Instrumentation (together with 6th IMEKO TC4 Workshop on ADC Modelling and Testing)
- Place:
- Lisbon, PORTUGAL
- Time:
- 13 September 2001 - 14 September 2001