Energy Balance Decision Threshold in SDM Systems

Hawksford MJ. Energy Balance Decision Threshold in SDM Systems. In: AES Conference: 31st International Conference: New Directions in High Resolution Audio. Audio Engineering Society; 2007. Paper 19. Available from: https://aes.org/publications/elibrary-page/?id=13954

@inproceedings{Hawksford2007_13954,
  author = {Hawksford, Malcolm J.},
  title = {{Energy Balance Decision Threshold in SDM Systems}},
  booktitle = {AES Conference: 31st International Conference: New Directions in High Resolution Audio},
  note = {Paper 19},
  year = {2007},
  month = jun,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=13954}
}

TY  - CPAPER
TI  - Energy Balance Decision Threshold in SDM Systems
AU  - Hawksford, Malcolm J.
T2  - AES Conference: 31st International Conference: New Directions in High Resolution Audio
M1  - Paper 19
PY  - 2007
DA  - 2007/06/06
UR  - https://aes.org/publications/elibrary-page/?id=13954
PB  - Audio Engineering Society
LA  - en
AB  - Conventional SDM employs an amplitude comparator to convert sampled multi-level signals to a binary level bitstream where negative feedback is used to shape the output distortion spectrum. A modified threshold decision process is proposed that takes a holistic view of the state of the loop. Here a measure related to stored energy within the loop is calculated over a short look-ahead period and then used to select the polarity of the output code at each sampling instant. The motivation is to improve loop stability for high order coders especially for high amplitude input signals as encountered in switching power amplifier applications.
ER  -