Cell-averaging cfar

1. What is cell averaging CFAR?
2. What is CFAR algorithm?
3. How does a CFAR detector work?
4. What is false alarm rate in radar?

What is cell averaging CFAR?

Cell – Averaging CFAR (CA - CFAR) is a type of CFAR detection where the threshold is estimated by scanning a block of cells around a cell-under-test (CUT) and calculating the average power level.

What is CFAR algorithm?

Constant false alarm rate (CFAR) algorithms are forced to reach a specified false alarm rate, meaning the number of false alarms that are accepted in a certain data range. The threshold holds the value, which a certain range cell has to exceed to be identified as an object.

How does a CFAR detector work?

A CFAR detection occurs when the input signal level in a cell exceeds the threshold level. The threshold level for each cell depends on the threshold factor and the noise power in that derived from training cells.

What is false alarm rate in radar?

Constant false alarm rate (CFAR) detection refers to a common form of adaptive algorithm used in radar systems to detect target returns against a background of noise, clutter and interference.