There exists a current need to rapidly and accurately identify the presence and location of optical imaging devices used
in counter-surveillance activities against U. S. troops deployed abroad. The locations of devices employed in counter-surveillance
activities can be identified through detection of the optically augmented reflection from these devices. To
address this need, we have developed a novel optical augmentation sensor, the Mobile Optical Detection System
(MODS), which is uniquely designed to identify the presence of optical systems of interest. The essential components of
the sensor are three, spectrally diverse diode lasers (1 ultraviolet/2 near-infrared) which are integrated to produce a single
multi-wavelength interrogation beam and a charge-coupled-device (CCD) receiver which is used to detect the
retroreflected, optical beam returned from a target of interest. The multi-spectral diode laser illuminator and digital
receiver are configured in a pseudo-monostatic arrangement and are controlled through a customized computer interface.
By comparison, MODS is unique among OA sensors since it employs a collection of wavelength-diverse, continuous-wave
(CW) diode laser sources which facilitate the identification of optical imaging devices used for counter-surveillance
activities. In addition, digital image processing techniques are leveraged to facilitate improved clutter
rejection concomitant with highly-specific target location (e.g., azimuth and elevation). More, the digital output format
makes the sensor amenable to a wide range of interface options including computer networks, eyepieces and remotely-located
displays linked through wireless nodes.