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FIR Designer 1.40
Sponsored links:
Radio Consult SRL
FIR Designer is an interactive software tool for Finite Impulse Response (FIR) filter design. It has a very intuitive user interface that gives the possibility to see in real time the effects of changing various filter parameters and supports the following filter shapes: low-pass, low-pass square root raised cosine, high-pass, band-pass, band-stop, Hilbert transform, averaging, differentiator and CIC-like for decimation. Some of the filter shapes can be combined with one of the following window functions: rectangular, triangular (Bartlett), cosine, Hamming, Blackman (with ?=0.16), Blackman-Harris and Hann (Hanning).
The low-pass, high-pass, band-pass and band-stop filter shapes are generated using the Windowed Sinc method. This insures a 6dB attenuation at the specified cutoff frequencies.
The designed FIR filter can be studied in real time because any parameter change is immediately followed by an update of the actual filter frequency characteristic in both module and phase. Also the filter taps are graphically displayed in time domain. The displayed filter frequency characteristic is based on the restrictions imposed by the selected data format. This insures that the actual filter frequency characteristic properly considers truncation errors when using fixed point implementations.
When a satisfactory FIR filter characteristic is obtained, the corresponding taps can be saved in various formats, depending on the actual needs. Also the parameters of the FIR filter can be exported in a text file to be available later. Alternatively, previously generated FIR filter taps can be loaded from a file or from the clipboard and the frequency characteristic of the filter can be studied or the taps can be saved in a different format. If the file formats that are implemented for loading and saving the FIR filter taps don't suit your needs, don't hesitate to contact us!
The low-pass, high-pass, band-pass and band-stop filter shapes are generated using the Windowed Sinc method. This insures a 6dB attenuation at the specified cutoff frequencies.
The designed FIR filter can be studied in real time because any parameter change is immediately followed by an update of the actual filter frequency characteristic in both module and phase. Also the filter taps are graphically displayed in time domain. The displayed filter frequency characteristic is based on the restrictions imposed by the selected data format. This insures that the actual filter frequency characteristic properly considers truncation errors when using fixed point implementations.
When a satisfactory FIR filter characteristic is obtained, the corresponding taps can be saved in various formats, depending on the actual needs. Also the parameters of the FIR filter can be exported in a text file to be available later. Alternatively, previously generated FIR filter taps can be loaded from a file or from the clipboard and the frequency characteristic of the filter can be studied or the taps can be saved in a different format. If the file formats that are implemented for loading and saving the FIR filter taps don't suit your needs, don't hesitate to contact us!
Homepage: FIR Designer
OS: Windows XP, Windows Vista, Windows Vista x64, Windows 7, Windows 7 x64, Windows 8, Windows 8 x64, Windows 10, Windows 10 x64
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