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The Signal Averaging capability takes advantage of the on-board FPGA technology on select Gage 12 and 14-bit digitizers and allows rapid signal averaging with absolutely no CPU-loading on the host PC. The process consists of making multiple acquisitions of a repetitive waveform and averaging all acquisitions together. Any random noise is subsequently averaged to near zero, while the amplitude of the underlying repetitive signal remains unchanged.

Since the signal averaging is performed on-board using the intelligent processing of the FPGA, the amount of data that needs to be transferred via the PCI bus to the PC may be reduced by a factor of 1000. In fact, waveforms can be signal-averaged at a rate of greater than 100,000 waveforms per second for a data processing rate of 800 MB/s. "Our new signal averaging technology provides a fast and efficient means for users to process data on-board the digitizer, and transfer only the data that is of interest to the PC for further analysis," said Eric Gillas, Gage General Manager. "Customers can now choose to add the latest Signal Averaging Technology or our previously announced Finite Impulse Response (FIR) Filter FPGA Technology to one of our high-resolution digitizers. We will continue to offer new application specific FPGA technology on-board our digitizers in the future," Gillas added.

Signal averaging is a powerful method of improving the fidelity of noisy repetitive signals. Using signal averaging, small signals can be extracted from a background of high amplitude noise, which may even be larger than the actual signal itself.