Wang H, Ebbini E, Cain C A
Dept. of Electr. and Comput. Eng., Illinois Univ., Urbana, IL.
IEEE Trans Ultrason Ferroelectr Freq Control. 1990;37(3):274-7. doi: 10.1109/58.55318.
Computationally efficient incremental algorithms for application of the pseudoinverse method for ultrasound phased-array field pattern synthesis are discussed and shown to significantly reduce computing effort when more control points should be added to existing subsets of points previously manipulated. These algorithms avoid calculation of inverse matrices, a time-consuming job for microcomputers when the dimensions of the matrices are large. This technique can be used to recursively modify the heating patterns of a phased-array hyperthermia applicator in the clinic.
讨论了用于超声相控阵场模式合成的伪逆方法应用的计算高效增量算法，结果表明，当需要在先前处理的现有点子集上添加更多控制点时，这些算法可显著减少计算量。这些算法避免了逆矩阵的计算，而当矩阵维度较大时，这对微型计算机来说是一项耗时的工作。该技术可用于临床上递归修改相控阵热疗施加器的加热模式。
