Howtosignalprocessing
Francisco Leffler, articles - page 37
Extracted envelope via Hilbert Transform is tracking the signal
What does the Hilbert transform do to a signal?What is a Hilbert transform envelope?How do you find the envelope of a signal?What is the envelope of ...
Inverse system of a system with integral
What is inverse of a system?Is an integrator system invertible?What is the inverse system in DSP?How do you know if a system is invertible? What is ...
Real-time oscillation-like noise filtering
Which filters are used for noise reduction?What kind of filter could be used to reduce the 60 cycle noise?What is the advantage of filtering the data...
What is the name of this digital low pass filter?
What is digital low-pass filter?What are the types of digital filter?What is Butterworth and Chebyshev filters?Is Butterworth a low-pass filter? Wha...
Formula derivation for periodic signal power
How do you calculate the power of a periodic signal?How do you calculate energy and power of a signal?Is periodic signal a power signal?How do you ca...
Why are analytic signals so important in Time-frequency analysis?
Why is the analytic signal useful?Why is the frequency domain analysis of signals so important?What is the need of time frequency analysis?What is th...
What can i find in a spectrogram?
A spectrogram is a visual way of representing the signal strength, or “loudness”, of a signal over time at various frequencies present in a particular...
Time-Bandwidth Product
Time-bandwidth product is the product of the duration of a signal and its spectral width. Generally, signals of short duration have wide spectral widt...
Pre-emphasis filter for speech recognition
What is pre-emphasis in speech recognition?Which filter is used in pre-emphasis?What is a preemphasis filter?What is the use of pre-emphasis? What i...