Universal Journal of Finance and Economics

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Digital Signal Processing Challenges in Financial Messaging Systems: Case Studies in High-Volume SWIFT Flows

Table 1.

Measuredlatency for the main components in the processing and scoring stages


	Stage	Latency (s)

0	Ingest + normalization	0.35
1	IIR prefilter (streaming)	0.1
2	Windowed STFT (128, 75% overlap)	0.8
3	Matched filter & scoring	0.25
4	Gabor bank features	0.6
5	Aggregation & alert	0.2
6	End-to-end (high-refresh path)	2.3