Some problems, such as the choice of frequency and distance between transducers, are discussed according to sonar equation, which should be considered in the design of Acoustic Correlation Log.
Some problems, such as the choice of frequency, estimation of the distance and so on, are discussed according to sonar equation, which should be considered in designing an acoustic correlation log.
围绕声呐方程，论证了相关计程仪设计时应考虑的一些问题，如频率的选取，作用距离的估计等。
3
A signal source in sonar receiver's testing is designed, its working principle is based on DDS technology and log DAC.