Accession Number:

AD0768874

Title:

Noise-Reducing, Nonrecursive Digital Filters.

Descriptive Note:

Technical rept.,

Corporate Author:

RHODE ISLAND UNIV KINGSTON DEPT OF ELECTRICAL ENGINEERING

Report Date:

1973-09-25

Pagination or Media Count:

45.0

Abstract:

Techniques for the design of noise-reducing, nonrecursive digital filters are compared. Special emphasis is placed on a simple method for constraining the response of a filter at selected frequencies, including the edges of the passband, while minimizing the filter output noise power over a specified stopband of frequencies. These constraints can be used to shape the passband response, for example. The above mentioned constrained-points CP method is compared with three other of digital filter design which are based on the criteria of maximum energy-ratio or maximum SNR, minimax error subject to upper and lower restraining functions and least-squares approximation. The special problem of rejecting strong sinusoidal interferences without excessive change in passband response or putput noise power is shown to be well suited to the CP method of design. Author

Subject Categories:

  • Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE