Sync signal processing for asynchronously sampled video signals
نویسندگان
چکیده
Digital sync signal processing for asynchronously digitized video signals is presented. A simplified matched filter for sync extraction and a linear prediction method for sync pulse filtering improves image stability significantly in comparison with a conventional phase-locked-loop (PLL) approach. Due to the linear prediction method, additional adaption to phase skips in the input signal (non-standard signals) may be easily realized. A suitable hardware realization as an FIR-structure (Finite Impulse Response) simplifies the linear prediction and analytical computation of the filter coefficients. Relaxed time constraints suggest a serial, area-reduced implementation of the filter structures.
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