Low Cost, Low Power Dissipation Micro-Signal Processor for Acoustic Signal Processing.
Abstract
A low cost, low power dissipation micro-signal processor has been designed and built for application to deployed sensors. Using latest technology, state-of-the-art components, this microprocessor based system has been programmed, and demonstrated in performing 1024 point fast Fourier transforms (FFT's) on 8-bit input within one second, as well as a variety of associated data acquisition and control functions. All necessary functions for a self-contained, stand alone acoustic processor were incorporated in a 410 cu, cm. feasibility brassboard, dissipating an average of 50 mw. All essential components were either CMOS or CMOS/SOS, including the standard commercially available 1802 microprocessor, and, a special LSI multiplier required for expediting the computations needed for the FFT. Major hardware and software issues are discussed, followed by an exposition of emerging technology IC's, leading to even smaller, lower cost, lower power dissipation processors. In particular, new compatible monolithic filtering will improve performance by converting the analog conditioning requirements to a single chip design, which can be combined with five other existing chips for a complete acoustic processor.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1979
- Accession Number
- ADA080808
Entities
People
- D. Hampel
- J. L. Bradshaw
- K. J. Prost