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Dick Rusell


Active since 2014

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Designing a quantized filter for 16-bit fixed point processors?
I'm supposed to design a quantized filter for 16-bit fixed point processors. Is this possible using fdatool, and if so, how woul...

9 years ago | 0 answers | 0

0

answers

Question


Plotting frequency response from fdatool filter coefficients?
I created a 400 order bandpass fir filter using fdatool and exported the coefficients. How do I create the frequency response us...

9 years ago | 1 answer | 0

1

answer

Question


zooming out of a signal?
Can anyone help me zoom out or change the window size? Because the signal I'm using creating a blue box because of the high freq...

9 years ago | 1 answer | 0

1

answer

Question


Lowpass filter with L=50?
I'm not sure how to make a lowpass filter with L=50, cutoff frequency 1100Hz with omegac, and a sampling frequency of 8000Hz usi...

9 years ago | 1 answer | 0

1

answer

Question


Generating a 6 second sine wave?
I'm supposed to generate a 6 seconds long sine wave that has amplitude of 1.0, frequency of 400Hz at a 8KHz sampling frequency,...

9 years ago | 2 answers | 0

2

answers

Question


Using a comb filter to reduce noise/amplitude?
My goal is to reduce the signal's noise and amplitude using comb,fir, or iir filters. I'm not sure where to start as it is not o...

9 years ago | 1 answer | 0

1

answer

Question


Using iirnotch for more than one frequency?
I'm currently using iirnotch to filter out 120Hz as seen here Wo = 120/(960/2); BW = Wo/35; [b,a] = iirnotch(Wo,BW); ...

9 years ago | 1 answer | 0

1

answer

Question


Comb filter to remove noise?
I'm supposed to make a comb filter to remove the noise at 120Hz and 240Hz, with the sampling frequency at 960Hz but I'm not sure...

9 years ago | 1 answer | 0

1

answer

Question


Problems with snr function
I want to find the snr for signal xn and noise ns but I keep getting an error. clear; n = [0:1023]; omega = 0.25*pi; ...

9 years ago | 3 answers | 0

3

answers

Question


Combining 2 signals into 1
I'm trying to combine these signals but I'm not sure how. n = [0:1023]; omega = 0.25*pi; xn = sin(omega*n); ns ...

9 years ago | 2 answers | 0

2

answers

Question


How to generate a signal with zero mean and 0.2 variance (uniform)
I was wondering how to generate this signal, and to mix it with xn that I already made: n = [0:1023]; omega = 0.25*pi; ...

9 years ago | 1 answer | 0

1

answer

Question


How to generate Zero mean and unit variance
I'm not sure how to generate 1024 samples of pseudo random numbers with zero mean and unit variance using rand and to verify the...

9 years ago | 3 answers | 0

3

answers

Question


How to plot this signal?
I'm trying to plot this signal but I'm not sure where to start. y(n) = ax(n) + bx(n − 1) + cx(n − 2) where a=b=c=1/3

9 years ago | 1 answer | 0

1

answer

Question


Expression or statement is incorrect--possibly unbalanced
I'm trying to use plot, but I keep getting this error and I'm not sure why. n = [0:99]; omega = 1.26 * pi; xn = sin(...

9 years ago | 1 answer | 0

1

answer