A Multiple Shots 3-D Holographic Sonar Using a Set of Orthogonalized Modulating Signals
A Multiple Shots 3-D Holographic Sonar Using a Set of Orthogonalized Modulating Signals
复制标题
使用一组正交调制信号的多次发射 3D 全息声纳
DOI：
10.1007/978-1-4615-2958-3_100
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
N. Ishii
中科院分区：
文献类型：
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作者：
Y. Tamura;Y. Aochi;Shinya Terasaki;O. Takano;T. Akatsuka;C. Ishihara;N. Ishii
全息声纳结合了换能器阵列，能够进行高速数据采集。我们提出了一种利用沃尔什函数调制的发射脉冲的高速成像系统。关于调制声学成像系统的功能，沃尔什函数具有许多优点；1由于它们的二进制性质，它们易于产生和处理；2脉冲的持续时间变短；以及3可以通过单个发射和接收过程(单次激发成像)重建图像。
Holographic sonar, which incorporates a transducer array, is capable of high speed data acquisition. We have proposed a high speed imaging system using transmitting pulses modulated with Walsh functions ’. Walsh functions have a number of merits with respect to modulating the functions of acoustical imaging systems; ① they are easy to generate and process because of their binary properties, ② the duration time of pulses becomes short, and ③ an image can be reconstructed by means of a single transmitting and receiving process (single shot imaging).