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HIGH PERFORMANCE FLEXIBLE ADAPTIVE FILTERING PERIPHERAL FOR DIGITAL…

Award Information

Agency:
National Science Foundation
Branch:
N/A
Award ID:
11763
Program Year/Program:
1990 / SBIR
Agency Tracking Number:
11763
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Datec Inc
300 Executive Park Po Box 13568 Rtp, NC 27709
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1990
Title: HIGH PERFORMANCE FLEXIBLE ADAPTIVE FILTERING PERIPHERAL FOR DIGITAL COMMUNICATION SYSTEM
Agency: NSF
Contract: N/A
Award Amount: $49,671.00
 

Abstract:

THE PURPOSE OF THIS PROPOSAL IS TO DESIGN AND BUILD A GENERIC ADAPTIVE FILTERING MODULE FOR DIGITAL COMMUNICATION SYSTEMS. THE DESIGN WILL BE BASED ON THE MULTI-CHANNEL FAST RECURSIVE LEAST SQUARES (RLS) ADAPTIVE FILTERING ALGORITHM. DESIGNS WILL BE INTRODUCED IN WHICH ECHO CANCELLATION, EQUALIZATION, AUTOMATIC GAIN CONTROL, AND TIMING AND CARRIER RECOVERY ARE ALL PERFORMED DIGITALLY ON SINGLE OR MULTIPLE DIGITAL SIGNAL PROCESSORS. BOTH FIXED POINT AND FLOATING POINT IMPLEMENTATIONS WILL BE DEVELOPED AND THE FINITE PRECISION ISSUES INVOLVED IN MAPPING THESE ALGORITHMS TO FINITE WORDLENGTH DSP'S WILL BE ADDRESSED. REAL TIME AND HIGH LEVEL SIMULATIONS OF THESE ALGORITHMS WILL BE PERFORMED OVER REALISTIC CHANNELS. THESE INCLUDE FADING IN MOBILE DIGITAL RADIO AND VOICE-BAND CHANNELS WITH VARIOUS IMPAIRMENTS. PRESENT DIGITAL COMMUNICATION SYSTEMS BASED ON CURRENT ADAPTIVE FILTERING TECHNOLOGY FAIL IN WORST CASE CHANNELS FOR VOICE-BAND MODEMS AND IN THE CASE OFMOBILE COMMUNICATION SYSTEMS, DURING RAPID FADING. HIGHER SPEED COMMUNICATION OVER CHANNELS WITH MORE NOISE ANDDISTORTION WILL BECOME FEASIBLE BY EMPLOYING THESE NEW ALGORITHMS. FURTHERMORE, THE ALL DIGITAL DSP-BASED DESIGN ENSURES MANUFACTURABILITY WITH GREATER RELIABILITY AND LITTLE OR NO TIME CONSUMING MANUAL ADJUSTMENTS.

Principal Investigator:

William T Jefferson
President
0

Business Contact:

Small Business Information at Submission:

Datec Inc
300 Executive Park Po Box 13568 Rtp, NC 27709

EIN/Tax ID:
DUNS: N/A
Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No