Cfar

Ca-cfar algorithm

Ca-cfar algorithm
  1. What is CA CFAR?
  2. How does a CFAR detector work?
  3. How is CFAR loss calculated?
  4. What is constant false alarm rate receiver?

What is CA CFAR?

An important CFAR algorithm is the cell averaging (CA) CFAR, in which the mean background level is estimated by averaging the signal level in M neighboring range cells. The adaptive threshold is set by multiplying the mean background level by a coefficient α.

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.

How is CFAR loss calculated?

The CFAR ratio is calculated using the equation, X = - log 10 ( PFA )/ NRC .

What is constant false alarm rate receiver?

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.

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