Howtosignalprocessing
- Why we use the RRC as a transmission pulse?
- How is pulse shaping done?
- Which filter is used for pulse shaping?
- How does pulse shaping reduce ISI?
Why we use the RRC as a transmission pulse?
Using 90% power Bandwidth (BW) measurement definition showed that the RRC filtering might improve spectrum efficiency by more than 75%. Furthermore using the matching RRC filters both in the transmitter and receiver provides the improved Bit Error Rate (BER) performance.
How is pulse shaping done?
In electronics and telecommunications, pulse shaping is the process of changing the waveform of transmitted pulses to optimize the signal for its intended purpose or the communication channel. This is often done by limiting the bandwidth of the transmission and filtering the pulses to control intersymbol interference.
Which filter is used for pulse shaping?
The Gaussian filter is a pulse shaping technique that is typically used for frequency shift keying (FSK) and minimum shift keying (MSK) modulation. This filter is unlike the raised cosine and root raised cosine filters because it does not implement zero crossing points.
How does pulse shaping reduce ISI?
Pulse shaping should contain the transmit signal within the specified band while minimizing the probability of errors at the receiver. On the other hand, pulse shaping causes inter-symbol interference (ISI) that degrades the detection process and therefore brings down the error performance of the whole system.
