Abstract: Methods and systems are provided for determining a maximum expected response of a reverberant wavefield system to an excitation, where there is uncertainty in both the excitation and the dynamic properties of the system. An exemplary method of characterizing a reverberant response associated with an reverberant subsystem involves determining a first variance associated with an excitation energy exposed to the reverberant subsystem, determining a second variance associated with an effective damping loss factor of the reverberant subsystem, determining a third variance associated with an input modal power acceptance of the reverberant subsystem—and for multiple connected subsystems, determining a fourth variance associated with a coupling loss factor of the coupled subsystems—determining a cumulative variance associated with the reverberant response based on the first variance, the second variance, and the third variance, and displaying an output influenced by the cumulative variance on a display device.

Abstract: A sensor system as presented here includes a plurality of digital sensor devices, a random access memory (RAM) architecture coupled to the digital sensor devices, and a controller operatively coupled to the RAM architecture. Each digital sensor device is configured to generate digital sensor output data. The controller controls the reading and writing operations of the RAM architecture. During a data recording operation of the sensor system, each of the digital sensor devices is directly connected, electrically and physically, to the RAM architecture to facilitate synchronous writing of the digital sensor output data.

Abstract: Methods and systems are provided for determining the surface electromagnetic impedance of a conductive element and applying the diffuse field reciprocity principle using that surface electromagnetic impedance to determine electric fields induced in the conductive element. An exemplary method involves determining a surface electromagnetic impedance matrix for the conductive element based on its physical dimensions and an excitation frequency for an incident electromagnetic wavefield, applying diffuse field reciprocity to determine a metric indicative of an induced field based on the surface electromagnetic impedance matrix and an energy metric for the incident electromagnetic wavefield, and displaying a graphical representation of the metric on a display device.