PRF Code Laser Designator

A PRF code recognition device has been developed for decoding the PRF codes of laser target designators. The device is non-intrusive and allows the user to decode the PRF codes programmed in battlefield laser target designators intended for laser-guided munitions delivery. Knowledge of the PRF codes and their periodic validation is highly significant for successful delivery of the guided munitions on to the target and it is essential that the selected PRF code on the laser designator matches with the code set in the seeker head.

The device consists of two modules, namely the sensor head and the processing/ display module. The sensor head of the device needs to be exposed to laser radiation for less than a second to give a direct reading display of the operating PRF code. The device has an operational frequency range of 5 to 100 Hz, measures non-intrusively the PRF code with a time interval accuracy of better than - 1-s and is capable of storing up to 100 PRF codes. Its spectral response band is from 700 nm to 1100 nm.

The device including its battery pack weighs only 3.75 kg and is completely indigenous in both design and implementation.