Francisco Leffler, articles - page 4

Signal Why MATLAB's abs(fft(X)) returns maximum amplitude first harmonic's while in signal maximum is second's?
Why MATLAB's abs(fft(X)) returns maximum amplitude first harmonic's while in signal maximum is second's?
What does the amplitude of FFT show?How do you normalize FFT amplitude?Does amplitude affect FFT?How do you find the frequency spectrum of a signal i...
Signal Why is Envelope noisy even after filtering and achievement of SNR gain (-6dB SNR to 14dB snr)?
Why is Envelope noisy even after filtering and achievement of SNR gain (-6dB SNR to 14dB snr)?
What does high SNR mean?What causes low signal to noise ratio?Should SNR be high or low?What is the equation for SNR signal to noise ratio? What doe...
Sampling What is the connection between the maximum time-value in seconds, number of samples N and the sampling frequency fs in Hz?
What is the connection between the maximum time-value in seconds, number of samples N and the sampling frequency fs in Hz?
What is the relationship between sampling rate points and time in seconds )?What is the relation between sampling frequency and signal frequency?Is H...
Wavelet Practical applications of wavelets
Practical applications of wavelets
What are the applications of wavelets?What is wavelet transform and its applications?What is wavelet analysis used for?What is the main application o...
Signal How to calculate the total signal strength and phase shift of multiple signals in a reciever
How to calculate the total signal strength and phase shift of multiple signals in a reciever
How do you calculate signal strength?How do you find the phase shift of a signal?How is radio signal strength measured?Is defined as the variations i...
Ring What are the applications of Non Unique Factorization Domain (Non-UFD) in signal processing? [closed]
What are the applications of Non Unique Factorization Domain (Non-UFD) in signal processing? [closed]
What is UFD in ring theory?Which of the following is a UFD but not a PID?Are all fields unique factorization domains?Is polynomial ring a unique fact...
Negative Frequencies in frequency spectrum with no correlation together
Frequencies in frequency spectrum with no correlation together
What are negative frequencies in spectrum?Is it possible to have negative frequency?What does a frequency spectrum tell you?Why we have negative freq...
Filter How would you put this IIR Approximation of FIR Filters Via Discrete-Time Vector Fitting into Matlab? [closed]
How would you put this IIR Approximation of FIR Filters Via Discrete-Time Vector Fitting into Matlab? [closed]
How do you determine if a filter is FIR or IIR from transfer function?How do you convert IIR to FIR?How do you make an IIR filter linear phase?In wha...
Autocorrelation Calculate autocorrelation of a sinus
Calculate autocorrelation of a sinus
How is autocorrelation calculated?How do you calculate autocorrelation from power spectral density?What is autocorrelation of sine wave? How is auto...