As sensor technology advances to where sensor system size has shrunk and cost has lowered, it becomes apparent that these systems can be applied in many more military situations, including attacks by individuals from hostile forces. The proliferation of sensor systems, however, calls for more discriminatory and specific evaluation of these systems. A useful tool in the evaluation of sensor systems lies in the computerized modeling of these systems, and input/output simulation by introduction of key parameters. Another tool is the empirical assessment of these systems under field-test conditions. This proposal will define and describe some battlefield modeling/simulation techniques that would appraise sensor systems that include acoustic, magnetic, seismic, thermal, chemical, radiation and others. Methods of sensor deployment such as by air drop, projectile, vehicle and human would also be explored. Sensor specifications such as range, power requirements, communication modes and protocols will be analyzed for optimum values. Low false alarm rate of the sensors would be a key objective of these simulations. The modeling and simulation techniques, as well as subsequent empirical validation, would likely produce valuable information on sensor system groups, resulting in improved system design and deployment, and therefore more effective human and asset protection.