Howtosignalprocessing
- Why do we do pulse shaping?
- What is a pulse shaping filter?
- Why do we use raised cosine filter?
- Which of the following is a pulse shaping filter?
Why do we do pulse shaping?
Note that the pulse shaping filter not only reduces intersymbol interference (ISI), but that it also reduces adjacent channel interference. Thus, pulse shaped filtering allows for the implementation of frequency division multiplexing (FDM) and a subset of FDM known as orthogonal frequency division multiplexing (OFDM).
What is a pulse shaping filter?
A pulse shaping filter is used in communication channels to manipulate a waveform or pulses to have the desired shape in the time domain. A pulse shaping filter can be a physical circuit, but normally it's a mathematical function that is used as a signal processing algorithm.
Why do we use raised cosine filter?
Raised cosine filters are used for pulse shaping, where the signal is upsampled. Therefore, we also need to specify the upsampling factor.
Which of the following is a pulse shaping filter?
Explanation: Gaussian pulse shaping filter uses non Nyquist technique. It is effective when used in conjunction with minimum shift keying (MSK) modulation, or other modulation which is well suited for power efficient nonlinear amplifiers. 9. Gaussian filter has zero crossings at adjacent symbol peaks.
