Howtosignalprocessing
- What do you mean by pulse repetition frequency?
- What should be the pulse repetition frequency of a radar?
- What is PRF and PRT?
- What does increasing pulse repetition frequency do?
What do you mean by pulse repetition frequency?
The waveform of a pulsed radar is usually represented by the pulse duration τ, the pulse repetition interval (PRI) T, or the pulse repetition frequency (PRF) fp. PRI is the time interval between two adjacent pulses. PRF is the rate that pulses repeat per second and is equal to the inverse of PRI.
What should be the pulse repetition frequency of a radar?
3.2 Pulse Repetition Frequency. PRF is normally expressed as the number of pulses transmitted in 1 s and is therefore denoted in Hertz or pps (pulses per second). Typical values for a marine radar are 1000–3000 pps.
What is PRF and PRT?
PRT is the interval between the start of one pulse and the start of another. PRT is also equal to the sum, PRT = PW+RT. PRF = pulse repetition frequency. PRF has units of time-1 and is commonly expressed in Hz (1 Hz = 1/s) or as pulses per second (pps).
What does increasing pulse repetition frequency do?
A number of artifacts are directly influenced by the pulse repetition frequency, e.g. increasing it diminishes the aliasing artifact commonly encountered during color and spectral Doppler imaging, while decreasing it facilitates e.g. the display of the useful twinkling artifact occurring behind stones and ...
