MODIFIED METHOD FOR SIGNAL TO NOISE RATIO IMPROVEMENT USING DIGITAL FILTERS
Dessouky, M., Hadhoud, M., Abd EI-Samie, F. (1999). MODIFIED METHOD FOR SIGNAL TO NOISE RATIO IMPROVEMENT USING DIGITAL FILTERS. EKB Journal Management System, 8(ASAT Conference, 4-6 May 1999), 1-10. doi: 10.21608/asat.1999.25156
M. I.M. Dessouky; M. M. Hadhoud; F. E. Abd EI-Samie. "MODIFIED METHOD FOR SIGNAL TO NOISE RATIO IMPROVEMENT USING DIGITAL FILTERS". EKB Journal Management System, 8, ASAT Conference, 4-6 May 1999, 1999, 1-10. doi: 10.21608/asat.1999.25156
Dessouky, M., Hadhoud, M., Abd EI-Samie, F. (1999). 'MODIFIED METHOD FOR SIGNAL TO NOISE RATIO IMPROVEMENT USING DIGITAL FILTERS', EKB Journal Management System, 8(ASAT Conference, 4-6 May 1999), pp. 1-10. doi: 10.21608/asat.1999.25156
Dessouky, M., Hadhoud, M., Abd EI-Samie, F. MODIFIED METHOD FOR SIGNAL TO NOISE RATIO IMPROVEMENT USING DIGITAL FILTERS. EKB Journal Management System, 1999; 8(ASAT Conference, 4-6 May 1999): 1-10. doi: 10.21608/asat.1999.25156

MODIFIED METHOD FOR SIGNAL TO NOISE RATIO IMPROVEMENT USING DIGITAL FILTERS

International Conference on Aerospace Sciences and Aviation Technology
Article 72, Volume 8, ASAT Conference, 4-6 May 1999, May 1999, Page 1-10  XML PDF (2.02 MB)
Document Type: Original Article
DOI: 10.21608/asat.1999.25156
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Authors
M. I.M. Dessouky1; M. M. Hadhoud1; F. E. Abd EI-Samie2
1Assoc. prof., Dept. of Elec. Eng. Menoufia university, Menouf, Egypt.
2Graduate student, Dept. of Elec. Eng. Menoufia university, Menouf, Egypt.
Abstract
Traditionally, digital filters were used for signal-to-noise ratio (SNR) improvement. This paper proposes a modified method to enhance and improve the digital filter performance. This method is based on the combination of coherent time averaging technique and digital filtering. This paper discusses the processing of single and multiple input sinusoidal signals with additive noise. By using this method in processing multiple signals, we can isolate the weak in-band signals from the strong out-of-band signals, which consequently improve the weak signal delectability. Cascaded digital filtering is applied using similar or different types of digital filters. A comparison study is provided for single stage and cascaded stages digital filters. It is shown that this modified method leads to better results in SNR improvement of weak signals than in the case of the direct application of digital filtering.
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