An acoustic ocean measuring system is disclosed which uses measurements of sound intensity to locate and measure ocean anomalies. Several free-floating sound pulse emitting floats are placed in the ocean area to be measured; the position of the floats can be determined by well-known ranging techniques. Several hydrophones are positioned either in the immediate area or at distant locations to receive the sound pulses. A fixed number of received sound signals are electronically processed to obtain peak intensity signals. A fixed set of peak signals received from the floats over a fixed period of time are used to generate a trend line which can be used to predict the peak intensity received from the position data. The actual received intensity measurements are compared to the predicted measurements; substantial deviations from the predicted values are used to locate and measure parameters of ocean anomalies.

A method is provided of determining waveform stability of a pulse echo layer transducer (PELT) used for measuring paint film thickness of painted bodies. The method includes the steps of reading a signal with the PELT transducer with respect to a desired location of the vehicle. The method also includes the steps of determining whether a maximum absolute value of the read signal is greater than a noise threshold (.phi.) and computing a measure (.rho.) based on an option (k). The method includes the steps of determining whether the computed measure (.rho.) is above or below a predetermined threshold (T) based on the option (k), and concluding a stable/unstable signal from the PELT transducer.

A method for reducing roaming fraud in mobile phone systems includes the exchange of an RF signature of a roaming mobile phone between the foreign and home service areas. Thereafter, the analysis of the RF signature can be performed either at the foreign or home service area.

An integrated paint quality control (IPQC) system for feedback control of paint process for painting vehicle bodies includes a film thickness sensor system for measuring paint film thickness of the painted bodies. The IPQC system also includes a control system communicating with the film thickness sensor system for receiving information of the paint film thickness and combining the paint film thickness information with paint automation parameters on a vehicle identification number (VIN) basis of the painted bodies to control the paint process.

An integrated paint quality control (IPQC) system for feedback control of paint process for painting vehicle bodies includes a film thickness sensor system for measuring paint film thickness of the painted bodies. The IPQC system also includes a control system communicating with the film thickness sensor system for receiving information of the paint film thickness and combining the paint film thickness information with paint automation parameters on a vehicle identification number (VIN) basis of the painted bodies to control the paint process.