eXpert FPGA DSP Features for Data Acquisition
GaGe provides several eXpert FPGA processing firmware options for use with CompuScope Digitizers. All standard default CompuScope Digitizer model configurations can store raw acquired waveform data to onboard sample memory and then transfer them quickly to the user for analysis, display and/or storage. The addition of optional eXpert FPGA processing firmware features allow for some signal processing analysis, or other specific functionality, to be performed on the digitizer hardware itself within its onboard Field Programmable Gate Array (FPGA).
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PCI Express (PCIe) Data Streaming eXpert FPGA DSP Feature for CompuScope PCIe Digitizers
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All Gage PCI Express (PCIe) CompuScope Digitizers are capable of streaming acquired waveform data through the PCIe bus directly to the host PC RAM by utilizing the eXpert PCIe Data Streaming Firmware.By contrast, in standard Memory Mode operations the waveform data is first acquired to the digitizer card's onboard memory, acquisition is stopped, and then the data residing in onboard memory can be transferred to the host PC system.eXpert PCIe Data Streaming Mode operations provide two distinct advantages over standard Memory Mode. First, Streaming Mode may overcome the acquisition time limit imposed by the size volume of the dedicated onboard digitizer memory. Second, in Streaming Mode the user does not need to await completion of waveform acquisition before accessing the resulting waveform data, which is necessary in Memory Mode.
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Signal Averaging eXpert FPGA DSP Feature for CompuScope Digitizers
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Utilizing the eXpert Signal Averaging Firmware on a GaGe CompuScope Digitizer allows users to detect a small repetitive signal in a noisy environment by conducting rapid signal averaging completely on the digitizer's onboard FPGA with absolutely no host system CPU loading.
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Ultrasonic NDT Position Encoder eXpert FPGA DSP Feature for CompuScope PCIe Digitizers
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Most ultrasonic nondestructive inspection systems are equipped with one or more position encoders, which accurately measure the position or angle of a scanning ultrasonic transducer or sample.Although position encoders may operate with general purpose digitizers in ultrasonic inspection systems, digitizers equipped with encoder reading capability allow for the fastest possible scan rates.Specifically, digitizers that can read encoders are able to overcome slow native encoder software interfaces and mitigate non-deterministic behavior in the Windows environment.GaGe CompuScope digitizers that are equipped with position encoder reading capability addresses these modern ultrasonic inspection systems.
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Optical Coherence Tomography (OCT) eXpert FPGA DSP Feature for CompuScope PCIe Digitizers
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Optical Coherence Tomography (OCT) is an innovative medical diagnostic technique that is addressing an increasing number of applications.The system allows for the rapid acquisition of the optical spectra of light reflected off of a remote sample. The optical source for the experiment is a high-speed pulsed laser that is capable of generating optical chirps, in which the optical frequency increases in a linear fashion throughout the duration of the laser pulse.The eXpert OCT firmware adds digitizer support for variable rate k-clocking or inactive external clock by simultaneously digitizing the interferometer signal with the returned optical signal for use with OCT applications.
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Fast Fourier Transform (FFT) eXpert FPGA DSP Feature for CompuScope Digitizers
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Fourier Transform analysis is a powerful signal processing technique used in a wide variety of applications. Typically, Fourier transformation of time domain waveforms requires the execution of the computationally intensive Fast Fourier Transform (FFT) algorithm on a host PC.Utilizing the eXpert FFT Firmware on a GaGe CompuScope Digitizer allows users to conduct computationally intensive FFT algorithms completely on the digitizer's onboard FPGA with absolutely no host system CPU loading, allowing the host PC to handle other tasks in parallel.
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Digital Down Conversion (DDC) eXpert FPGA DSP Feature for CompuScope PCIe Digitizers
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