Accession Number:

ADA300511

Title:

On the Design of Finite Impulse Response Filters for Precision Quadrature Demodulation,

Descriptive Note:

Corporate Author:

DEFENCE RESEARCH ESTABLISHMENT OTTAWA (ONTARIO)

Personal Author(s):

• Inkol, Robert J.
• Saper, Ronald H.
• Herzig, Michel

Report Date:

1995-07-01

Pagination or Media Count:

46.0

Abstract:

The accuracy of digital quadrature demodulation can be improved by optimizing the matching of the in-phase and quadrature channel frequency responses. It is shown that an image rejection ratio exceeding 100 dB can be achieved using a pair of finite impulse response filters having 6 and 5 nonzero coefficients, respectively. AN

Descriptors:

• *SIGNAL PROCESSING
• *DIGITAL SYSTEMS
• *DEMODULATION
• ALGORITHMS
• FOURIER TRANSFORMATION
• ELECTRONIC WARFARE
• OPTIMIZATION
• CANADA
• ACCURACY
• MATHEMATICAL FILTERS
• ERROR ANALYSIS
• MATCHED FILTERS
• DEMODULATORS
• BANDPASS FILTERS
• FREQUENCY RESPONSE
• PHASE DISTORTION
• PHASE SHIFT
• NUMERICAL QUADRATURE
• INTERMEDIATE FREQUENCIES

Subject Categories:

• Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE