Papers Published

1. Bohs, L.N. and Barr, R.C., Prototype for real-time adaptive sampling using the fan algorithm, Med. Biol. Eng. Comput. (UK), vol. 26 no. 6 (1988), pp. 574 - 83 .
   (last updated on 2007/04/16)

   Abstract:
   Retrospective studies have established that the fan algorithm is an effective means of acquiring high-quality digital cardiac measurements. A prototype has now been constructed that samples adaptively in real time. The prototype uses two Texas Instruments TMS32010 signal processors and 79 additional TTL integrated circuits, at a component cost of approximately US$1000. The device acquires transient samples of the incoming analogue signal at up to 16000 samples s^-1, selects samples from this input stream according to the fan algorithm, and transmits the samples and the time intervals between them at a fixed permanent rate. The permanent rate is between 100 and 400 samples s^-1, as selected by the user. To respond to changing waveforms and repetition rates, while maintaining a fixed transmission rate, the prototype varies the fan tolerance. The lowest fan tolerance that will allow transmission of samples and time intervals at a rate not exceeding the permanent rate is used

   Keywords:
   electrocardiography;signal processing;