J. O. Coleman

FILES:

ciss93.ps.gz

FORMAT:

gzipped postscript.

AUTHORS:

J. O. Coleman

TITLE:

Linear-Programming Design of Hybrid Analog/FIR Receive Filters to Minimize Worst-Case Adjacent-Channel Interference

ABSTRACT:

This paper explores linear-programming techniques for the design of the FIR part of an analog/FIR hybrid receive filter with the goal of minimizing adjacent-channel interference (ACI) in a high-speed digital-radio modem. Four methods are presented: (1) minimizing peak ACI spectral height, (2) minimizing the L1 norm of the ACI spectrum, (3) minimizing peak time-domain ACI-pulse height, and (4) minimizing worst-case time-domain ACI, approximated as the sum of the complex magnitudes of baud-spaced samples of the ACI pulse with the worst-case adjacent-channel timing epoch. The second and fourth methods give excellent performance.

STATUS:

Presented at the 1993 Conference on Information Sciences and Systems held at Johns Hopkins University March 24-26, 1993. (Revised into final form 3/14/93.)

DATE OF ENTRY:

March 14, 1993. Updated February 14, 1994.