Thermography and spectroradiometry are very strong tools for night vision and target detection. Starers and scanners were normally used for imaging of targets without the existence of a facility to locate these targets. An imaging technique in which the determination of targets location is presented. In this design of the imaging system, the frequency-modulated reticle was used instead of the chopper. Through the method of arc length differentiation, after demodulation, the output signal is obtained. The analysis showed that the design was strongly dependent on geometrical parameters instead of time. Using the point model results to analyze the parameters of the designed system, the imaging system can be used to locate the targets. In this work, a case study was presented and analyzed, to show how the thermographic system can be used for target coordination.