Inverse probability in angular-tracking radars

An angular-tracking radar of the pulsed type is analyzed for targets whose signal-return in the video follows a Rayleigh distribution. The pulse amplitudes are assumed independent from pulse-to-pulse but closely correlated for the duration of a pulse width. White Gaussian noise is introduced into the input of the receiver. It is assumed that phase information is lost. The method of inverse probability is used to find the most probable direction of the target from the scan axis. It is found that interference may be reduced by synchronizing transmissions in the scan cycle, by transmitting pulses in pairs simultaneously or nearly simultaneously, and by increasing the number of pulses integrated.