A reprogrammable filter bank using charge-coupled device discrete analog-signal processing
Abstract
A filter bank having up to 32 channels is formed by multiplexing a recursive two-pole delay line filter. Thirty-two sets of filter constants are stored and addressed digitally while multiple delays are provided in analog form by a charge-coupled device (CCD) delay line. The interface between the digitally stored constant and the delayed analog signal occurs in a four quadrant multiplying D/A where the delayed analog signal is weighted by the constant. Sampling and clamping at the CCD interfaces insures accurate bipolar analog operation. The filter hardware is described, the filter constants are derived, and the performance is documented.
- Publication:
-
IEEE Transactions on Electron Devices
- Pub Date:
- February 1976
- DOI:
- 10.1109/T-ED.1976.18367
- Bibcode:
- 1976ITED...23..156M
- Keywords:
-
- Analog Data;
- Charge Coupled Devices;
- Data Sampling;
- Digital Filters;
- Shift Registers;
- Signal Processing;
- Frequency Response;
- Laplace Transformation;
- Matched Filters;
- Multiplexing;
- Network Synthesis;
- Radar Filters;
- Recursive Functions;
- Timing Devices;
- Electronics and Electrical Engineering