DIRECT DIGITAL FILTERS FOR GENERAL-PURPOSE USE.

Abstract

The general properties of linear digital filters are discussed in terms of both frequency domain and time domain considerations. A basic approach to the design of low-pass direct linear digital filters is chosen so as to produce filters which can reject high-frequency components almost completely. Two types of low-pass filters are derived by this approach, one of which includes provision for endpointing and bridging discontinuities. A more general type of low-pass filter combining the features of these two filters is also presented. Each of these types of filters allows for a choice of cutoff frequency, of cutoff rate (which is related to the derivative response), and of the compromise between span length and rejection of high-frequency components. Methods of producing high-pass, band-pass, band-rejection, phase-shifter, and comb filters and combinations of filters are described. In addition, techniques of differentiation and integration are presented. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1966
Accession Number
AD0486808

Entities

People

  • Donald B. Gennery

Tags

DTIC Thesaurus Topics

  • Comb Filters
  • Cooperation
  • Digital Filters
  • Discontinuities
  • Filters
  • Frequency
  • Frequency Domain
  • Low Pass Filters
  • Rejection
  • Time Domain

Readers

  • Approximation Theory.
  • Microwave Engineering.
  • Systems Analysis and Design