DSP Mini-Projects.

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Presentation transcript:

DSP Mini-Projects

General Mini-Projects are based on Filter Design All projects use FIR filter size N=128 Use MATLAB to Calculate coefficients Use “Fir_C_Fixed” or “FIR” project template Use BSL headers/libraries: dsk6416.h dsk6416_aic23.h dsk6416_dip.h dsk6416_led.h dsk6416bsl.lib

Report Design and Implement Project (3hours) Prepare Report Document including: Short description of project Final Program Listing Frequency Response of Filters

P1 - 4 Switched LPFs Design 4 independent FIR LPFs: Output Signal comes from one of the Filters Use DIP-Switches to operate each one Cut Frequencies: Fc=400, 1600, 6400, 12000 Hz Use Hamming Window Fn=48KHz

P2 - 4 Switched HPFs Design 4 independent FIR HPFs: Output Signal comes from one of the Filters Use DIP-Switches to operate each one Cut Frequencies: Fc=200, 800, 3200, 12000 Hz Use Hamming Window Fn=48KHz

P3 - 4 Switched BPFs Design 4 independent FIR BPFs: Output Signal comes from one of the Filters Use DIP-Switches to operate each one Band Limit Frequencies: F = 100-400Hz F = 400-1600Hz F = 1600-6400Hz F = 6400-12000 Hz Use Hamming Window Fn=48KHz

P4 - 4 Switched Stereo Filters Design 2 LPF for Left + 2 HPF for Right: Output Signal comes from one of the Filters Use DIP-Switches to operate each one Cut Frequencies: Left Fc = 1600, 6400Hz Right Fc = 1600, 6400Hz Use Hamming Window Fn=48KHz

P5 – 4-Band Freq Equalizer Design Mix of 4 independent FIR BPFs: Output Signal is a Sum of 4 Filters Use DIP-Switches to operate each one Band Limit Frequencies: F = 100-400Hz F = 400-1600Hz F = 1600-6400Hz F = 6400-12000 Hz Use Hamming Window Fn=48KHz

P6 – 4-Band Spectrum Analizer Design Mix of 4 independent FIR BPFs: Output Signal of each filter is integrated M=1024 Result of integration is compared with Threshold Appropriate LED goes ON in case of result exceed Threshold Band Limit Frequencies: F = 100-400Hz F = 400-1600Hz F = 1600-6400Hz F = 6400-12000 Hz Use Hamming Window Fn=48KHz