The Effects of Circuit Parameters on Image Quality in a Holographic Acoustic Imaging System
The design of holographic acoustic imaging systems using hydrophone arrays at the Naval Undersea Center has led to the development of special signal processing electronics which will be described in detail. The tolerances on electronic component values in this circuit, the major noise sources in the circuit, and other properties of an imaging system will be used to calculate the expected imaging performance of a holographic imaging system, as measured by its image dynamic range. An alternative version of the circuit will also be discussed, analyzed, and compared with the original circuit. Finally, an analogy between the signal processing circuit and a cross-correlator will be made, indicating possible future developments.
KeywordsActive Integrator Circuit Parameter Array Gain Analog Switch Signal Processing Circuit
Unable to display preview. Download preview PDF.
- 1.Booth, N. O. and Saltzer, B. A. , “An Experimental Holographic Acoustic Imaging System, ” Acoustical Holography, Vol. 4, Springer Science+Business Media New York, 1972, Page 371.Google Scholar
- 2.Mueller, R. K. , Proceedings of IEEE, Vol. 59, 1971, Page 1319.Google Scholar
- 3.Thorn, J. V. , “Gain and Phase Variations in Holographic Acoustic Imaging Systems, ” Acoustical Holography, Vol. 4, Page 569.Google Scholar