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Jimmy


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Performing Haar Wavelet Transform on signal consists of 1000000X1 matrix array
Greetings, I am required to perform Haar wavelet transform for a signal consists of 1000000x1 matrix array data. I'm having d...

8 years ago | 0 answers | 0

0

answers

Question


Applying Principle Component Analysis (PCA) on human motion signal after undergoes several signal processing.
I have 30 sets of data containing various human motion signals (walking, running, etc). Each data consists of time-domain signal...

9 years ago | 1 answer | 0

1

answer

Question


Finding a maximum signal variation in MATLAB
I have a signal which consist of one 1000000x1 array (data) and one 1000000x1 array (time). I'm having problem to detect the loc...

9 years ago | 3 answers | 1

3

answers

Question


Fast Fourier Transform (FFT) in a certain range of signal
Greetings, I have a signal which consist of one 1000000x1 array (data) and one 1000000x1 array (time) which has been 'cut' and ...

9 years ago | 1 answer | 0

1

answer

Question


How to design a IIR highpass filter?
I'm having trouble to design a 120th order highpass filter with cutoff frequency = 6kHz, and sampling frequency of 20kHz. Thank...

10 years ago | 1 answer | 0

1

answer

Question


How to apply time reversal convolution?
Greetings, I have an impulse response of Hn = [4 2 1 0.5] and input signal of Xn = [2 1 -1 -2 3]. I would like to apply time ...

10 years ago | 1 answer | 0

1

answer

Question


Reflecting impulse response with respect to y-axis
Greetings, I have a discrete-time signal at the +x-axis. I'm having a problem to reflect the signal with respect to the y-axis ...

10 years ago | 1 answer | 0

1

answer

Question


limiting range of row in matrix
I have a set of data consisting of 198x81 sets of score data. I would like to take the data only at 50x81. If I type score(:,1...

11 years ago | 1 answer | 0

1

answer

Question


How to find variance of different score group
I have four different score groups to be analysed and I am required to find the variance of each group. I need to know what func...

11 years ago | 1 answer | 0

1

answer