Adjustable bandwidth fir filters: From design to implementation on the labview SW/HW platform
|Title||Adjustable bandwidth fir filters: From design to implementation on the labview SW/HW platform|
|Publication Type||Conference Paper|
|Year of Publication||2011|
|Authors||Luo, C., and J.H.. McClellan|
|Conference Name||Digital Signal Processing Workshop and IEEE Signal Processing Education Workshop (DSP/SPE), 2011 IEEE|
|Keywords||adjustable bandwidth filter, adjustable bandwidth FIR filter, Algorithm design and analysis, Bandwidth, circuit optimisation, digital filter, electronic engineering computing, end-to-end filter design, farrow structure, field programmable gate arrays, filter design optimization, Finite impulse response filter, FIR filters, FPGA, Hardware, LabVIEW, LabVIEW graphical programming, LabVIEW SW-HW platform, linear phase finite impulse response, Passband, Programming, virtual instrumentation, visual programming|
Digital filters with adjustable bandwidths controlled by one or two parameters are desirable in many applications. This paper treats the design and implementation of linear phase Finite Impulse Response (FIR) adjustable bandwidth filters using the Farrow structure which employs several basis filters in parallel. The complete development process from basis-filter design optimization to FPGA hardware implementation is carried out exclusively in the LabVIEW graphical programming environment. The intuitive structure of a graphical programming solution is easy to master for this end-to-end filter design and implementation task.