Geometric and algebraic errors in calculating a transducer'sspatial impulse response

Oung H.; Forsberg F.

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Geometric and algebraic errors in calculating a transducer'sspatial impulse response

机译：计算换能器的空间冲激响应时的几何和代数误差

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Two types of errors resulting from the numerical evaluation of antransducer's spatial impulse response function have been identified, Onenis geometric and is due to the mismatch between the emulated pistonnsurface (approximated using many small planar elements) and the truensurface. The other error is algebraic and is due to the inexactnformulation of the response of the emulated surface. The deviations fromnthe true response were calculated for three different pistons. Thenresults indicate that the shape and placement of the elements arenimportant for the computational accuracy

机译：已经确定了由换能器的空间脉冲响应函数的数值评估导致的两种类型的误差，一种是Onenis几何误差，这是由于模拟的活塞表面（使用许多小平面元素近似）与truen表面之间的不匹配所致。另一个误差是代数误差，这是由于模拟曲面的响应不精确而引起的。计算了三个不同活塞与真实响应的偏差。结果表明，元素的形状和位置对于计算精度并不重要。

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《IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control》 |1996年第2期|p.337-340|共4页
作者
Oung H.; Forsberg F.;
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正文语种 eng
中图分类声学工程;计量学;
关键词
acoustic field; error analysis; transient response; ultrasonic transducers; algebraic errors; computational accuracy; emulated piston surface; emulated surface; geometric errors; mismatch; numerical evaluation; spatial impulse response; spatial impulse response func;

机译：声场;误差分析;瞬态响应;超声换能器;代数误差;计算精度;模拟活塞表面;模拟表面;几何误差;失配;数值评估;空间冲激响应;空间冲激响应函数;

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专利

1. Geometric and algebraic errors in calculating a transducer's spatial impulse response [J] . Oung H., Forsberg F. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control . 1996,第2期

机译：计算换能器的空间脉冲响应时的几何和代数误差
2. A spatial impulse response based method for determining effective geometrical parameters for spherically focused transducers [J] . Wu P., Stepinski T. Ultrasonics . 2002,第1a8期

机译：基于空间脉冲响应的球形聚焦换能器有效几何参数确定方法
3. Method of calculating the additional error of measurement transducers for stochastic signals [J] . R.L.Pinkhusovich, B.F.Kuznetov Measurement techniques . 2002,第4期

机译：计算随机信号的测量传感器附加误差的方法
4. Unified Method of Calculating Impulse Response and Frequency Response in Piezoelectric Transducer with Inhomogeneous Structure [C] . Michio Ohki IEEE International Symposium on the Applications of Ferroelectrics . 2007

机译：用非均匀结构计算压电换能器脉冲响应和频率响应的统一方法
5. An algebraic view of multidimensional multiple-input multiple-output finite impulse response equalizers. [D] . Rajagopal, Ravikiran. 2003

机译：多维多输入多输出有限脉冲响应均衡器的代数视图。
6. Investigation of the far-field approximation for modeling a transducer's spatial impulse response in photoacoustic computed tomography [O] . Kenji Mitsuhashi, Kun Wang, Mark A. Anastasio 2018

机译：在光声计算机断层摄影中模拟换能器空间脉冲响应的远场近似研究
7. Impulse Response Parameter Errors Caused by Imprecisely Recorded Unit Step Response [O] . Shuji SATO, Tatsuya HARADA, Takayuki WAKIMOTO, 2002

机译：脉冲响应参数错误，由不精确的录制单元阶跃响应引起
8. Extending the impulse response in order to reduce errors due to impulse noise and signal fading [R] . Webb, Joseph A., Rolls, Andrew J., Sirisena, H. R. 1988

机译：扩展脉冲响应以减少由于脉冲噪声和信号衰落引起的误差

Geometric and algebraic errors in calculating a transducer'sspatial impulse response

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