Howtosignalprocessing
A coherent processing interval (CPI), in radar systems, indicates a group of multiple pulses, usually with the same PRF and frequency. A CPI will generally consist of one or more coherently integrated pulses, and possibly 1 or more fill pulses. PRF and frequency are sometimes changed between CPIs or groups of CPIs. ...
- What is CPI in radar?
- What is coherent processing?
- How do you calculate pulse repetition frequency?
- What is coherent radar?
What is CPI in radar?
For a coherent radar, the total time to be sampled is referred to as the coherent processing interval (CPI).
What is coherent processing?
In signal processing, the coherence is a statistic that can be used to examine the relation between two signals or data sets. It is commonly used to estimate the power transfer between input and output of a linear system.
How do you calculate pulse repetition frequency?
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). PRF is the number of pulses transmitted per second and is equal to the inverse of PRT.
What is coherent radar?
A coherent radar compares the phase or frequency of a target echo with a stable oscillator or reference signal source. Natural objects, such as trees or islands, tend to be relatively steady in phase or frequency. (An important exception is the Doppler-shifted frequency of echoes from weather phenomena.)
