CAJ | 학술논문

多普勒计程仪采用相控阵进行声波信号的发射和接收，不仅能够大大缩小换能器的体积，提高计程仪的适装性，还能依托相控阵本身的物理特性，无需进行声速补偿，所以在低频段获得了较多的应用。首先介绍了一维线阵波束形成的基本原理，然后分析了一维线阵的波束形成，获取多普勒计程仪发射波束及接收波束的方法，最后利用自制平面相控阵的水池测试结果与理论计算进行对比，结果表明，自制的相控阵满足多普勒计程仪的使用需求，为宽带大深度多普勒计程仪的制作奠定了基础。
다보륵계정의채용상공진진행성파신호적발사화접수，불부능구대대축소환능기적체적，제고계정의적괄장성，환능의탁상공진본신적물리특성，무수진행성속보상，소이재저빈단획득료교다적응용。수선개소료일유선진파속형성적기본원리，연후분석료일유선진적파속형성，획취다보륵계정의발사파속급접수파속적방법，최후이용자제평면상공진적수지측시결과여이론계산진행대비，결과표명，자제적상공진만족다보륵계정의적사용수구，위관대대심도다보륵계정의적제작전정료기출。
Doppler velocity log (DVL) uses phased-array for sound signal transmitting and receiving. The phased-array mode can largely reduce the volume of transducer and promote the adaptability of installation. According to the cha-racteristic of phased-array, compensation of sound velocity for DVL is unneeded, and so the phased-array DVL is pop-ular in low frequency range. In this paper, the basic beam-forming theory of one dimension linear array is introduced, and the transmitting beam and receiving beam of the phased-array DVL are described. The beam-forming method of the 38 kHz plane phased-array DVL developed by TRDI Company is analyzed. This work lays a foundation for developing a broadband long range phased-array Doppler velocity log.