Francisco Leffler, articles - page 35

Z-transform Finding Z transform of a signal Intermediate steps
Finding Z transform of a signal Intermediate steps
How do you find the Z-transform of a signal?What is the Z-transform of a unit step sequence?How do you find the Z-transform in DSP?What is the Z-tran...
Signal What happens if an harmonic in a band-limited signal at Nyquist frequency is added to a 90 degrees out-of-phase replica of it?
What happens if an harmonic in a band-limited signal at Nyquist frequency is added to a 90 degrees out-of-phase replica of it?
What effect will happen if sampling frequency is less than Nyquist rate?What is the Nyquist sampling frequency for a signal with frequency?How do you...
Frequency RC circuit frequency response
RC circuit frequency response
What is the frequency response of RC circuit?How do you find the frequency of an RC circuit?What is response of RC circuit?What is frequency response...
Complex NMSE of complex numbers
NMSE of complex numbers
How do you find the amplitude of a complex number?What is the formula of complex numbers?How does Matlab calculate MSE?How is complex numbers used in...
Signal Can addition of two band limited signals create aliasing?
Can addition of two band limited signals create aliasing?
How a band-limited signal can be sampled without aliasing?What causes aliasing?How do you prevent aliasing in sampling?Why is it necessary to limit t...
Fourier Fourier Transform Units
Fourier Transform Units
If you take the Fourier transform of x(t) to get X(jw) , then the units of X(jw) are C*sec or C/Hz (according to the Fourier transform integral). If y...
Matrix Interpretation of Eigen Values of covariance matrix
Interpretation of Eigen Values of covariance matrix
What do the eigenvalues of a covariance matrix represent?What do the eigenvectors of the covariance matrix give us?What do eigenvalues of correlation...
Algorithm FFT - second and further divides and conquers - need help
FFT - second and further divides and conquers - need help
Is FFT a divide and conquer algorithm?What is 64 point FFT?What happens if we apply DFT twice to a signal?What are the two types of FFT?Does FFT have...
Digital Conditions for representing (perfectly) an analog signal as a digital signal
Conditions for representing (perfectly) an analog signal as a digital signal
How can an analog signal be converted into a digital signal?What is requirement for analogue to digital conversion?What process must occur to transmi...