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Time Compression Multiplexing of Multiple Television Signals in Satellite Channels Using Chirp Transform Processors

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2 Author(s)
Eng, K.Y. ; Crawford Hill Laboratory, Bell Laboratories, Holmdel, NJ, USA ; On-Ching Yue

Higher picture quality and better link utilization can be obtained using time compression multiplexing of color television signals in satellite channels instead of the conventional approach of frequency-division multiplexing. A time compression/expansion technique based on chirp transforms is proposed for such an application. The real-time chirp transform needed is realizable by surface acoustic wave devices. The processing itself introduces truncation distortion on the signal, but the distortion can be controlled to a negligible level by proper design of the chirp filter. Preliminary results are encouraging and indicate that the method is promising for future applications.

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Communications, IEEE Transactions on  (Volume:29 ,  Issue: 12 )