Title :
Code generation with s.a.w. tapped delay lines
Author :
Crisp, J.J. ; Heeks, J.S.
Author_Institution :
Standard Telecommunication Laboratories Ltd., Harlow, UK
Abstract :
A surface-acoustic-wave tapped delay line is used as the basis of a pseudonoise-code generator operating at 20 Mbits. The temperature range of operation for nonisopaustic materials has been extended by a novel arrangement of the delay line and associated circuitry. In consequence, high-acoustic-coupling low-loss materials may be used, offering the potential of high-bit-rate operation.
Keywords :
acoustic surface wave devices; encoding; noise generators; ultrasonic delay lines; 100 MHZ; acoustic surface wave devices; encoding; noise generators; shift register; ultrasonic delay lines;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19730173
