Abstract: A method for the determination and display of signal arrival time, intensity, and direction for use with time domain measurements. The method may be implemented by either hardware or by software and includes obtaining at least four separate time domain measurement, such as energy time curves (ETCs), at ninety degree intervals on a horizontal plane. Opposing ETCs are differenced to obtain X and Y Cartesian components. For display in a polar format to illustrate the direction of arrival the X and Y components are converted into an angular value. The angular value determining the theta angle and either the time of arrival or intensity expressed in X and Y components establish the polar vector length. To display a three dimensional space two more ETCs are obtained in a vertical plane and correlated in the manner described above.