Designing Filters Using the NI LabVIEW Digital Filter Design Toolkit
The importance of digital filters is well established. Digital filters, and more generally digital signal processing (DSP) algorithms, are classified as discrete-time systems. They are commonly implemented on a general purpose computer, on a dedicated DSP chip, or in a Field Programmable Gate Array (FPGA) chip. Because of their well-known advantages, digital filters are often replacing classical analog filters. In this application note, we introduce a new digital filter design and analysis tool with which developers can work within a graphical development environment to interactively design, analyze, and implement digital filters. Highlights of the software include the ability to work with live signals to facilitate real-world filter testing and the ability to automatically generate LabVIEW and ANSI C code for targeting a DSP, an FPGA, or other embedded systems.
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