They dealt with a surveillance subsystemas part of a command and control systemconsisting of netted sensors in which data from each sensor are fused to provide performance improvements and capabilities for tracking and surveillance. In fusions, data from each sensor are usually transformed to a common reference system for merging. Registration by individual sensors refers to the process of ensuring the requisite error-free coordinate conversion. An accurate registration is a prerequisite for satisfactory track correlation, target tracking, and sensor data-fusion. The position information determines where objects are, whereas the identity information determines what they are.
Behavioral information is concerned with what the objects are doing.
The combination of information from every possible source is of primary importance. They proceeded to develop identification techniques through the use of statistical analysis of information from different sources. Figure 2 depicts the parameters involved in determining positional informationthe movement associated with an objectand identity informationdeclarations, propositions, or statements that establish the identity of an object. Figure 3 gives examples of sources of information for these parameters. Examples of information sources and corresponding outputs.