Method for determining the performance of a constant false alarm rate device of a sensor and associated devices and method

A method for measuring the performance of a constant false alarm rate detection device of a sensor, the sensor being adapted to observe an environment, the constant false alarm rate detection device being provided with an estimator adapted to determine an estimate of parameters related to noises affecting the sensor depending on parameters related to the environment observed by the sensor, the method being implemented by a calculator and comprising:

• estimating parameters related to the noises affecting the sensor, in order to obtain a parameter vector;
• obtaining detection thresholds for the constant false alarm rate detection device;
• characterizing the estimation errors of the estimator of the constant false alarm rate detection device, in order to obtain parameters relating to the estimation errors;
• determining the value of each detection threshold suitable for being actually used by the constant false alarm detection device due to the estimation errors of estimator of the constant false alarm rate for all possible configurations of the parameter vector, in order to obtain a set of determined detection thresholds, the determination using the parameters relating to the estimation errors for determining each detection threshold suitable for being actually used by the constant false alarm detection device;
• and
• calculating the performance of the constant false alarm detection device on the basis of said determining.