A Study of Algorithms for Detecting Pulsed Sinusoidal Interference in Microwave Radiometry

The performance of four algorithms for detecting the presence of short pulsed sinusoidal interference in microwave radiometry is compared. The pulsed sinusoidal interference sources considered have unknown frequency, initial phase, amplitude, arrival time, and duration. Statistical properties of three of the algorithms can be determined analytically, although numerical integrations are required in some cases in order to compute the obtained probabilities of detection. The performance of the fourth algorithm was evaluated using Monte Carlo procedures. Results show that three of the algorithms have a performance that is roughly comparable for the cases considered, while the fourth yields reduced sensitivity.