Accession Number:

AD0781267

Title:

Quantization Effects in Fixed-Point Recursive Digital Filters.

Descriptive Note:

Doctoral thesis,

Corporate Author:

ILLINOIS UNIV URBANA COORDINATED SCIENCE LAB

Personal Author(s):

• Long,James Lee

Report Date:

1973-09-01

Pagination or Media Count:

150.0

Abstract:

Errors due to roundoff of products after multiplication and coefficient quantization are examined for fixed-point finite wordlength digital filters. An absolute bound on limit cycles is derived. A design procedure for a new class of multiple feedback or leapfrog digital filters is proposed and tested. A general sensitivity roperty relating to the wave digital filter is proved and verified by example. The cascade, wave, ladder and multiple feedback filters are compared statistically with regard to coefficient sensitivity and roundoff noise. Author

Descriptors:

• *DIGITAL FILTERS
• *SIGNAL PROCESSING
• *QUANTIZATION
• LOGIC CIRCUITS
• BANDPASS FILTERS
• TRANSFER FUNCTIONS
• MATRICES(MATHEMATICS)
• SENSITIVITY
• GRAPHICS
• STANDARD DEVIATION
• THESES

Subject Categories:

• Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE