The ray approach is adopted to study the acoustic field in theory, and the ultrasonic experiment has been carried out in laboratory to model the underwater waveguide.
理论上采用射线近似方法分析了时间反转声场特性，实验上在实验室内开展了水下波导的超声模拟实验。
2
The problem of coupling an external radiation field into a nonlinear waveguide cavity has been investigated theoretically and experimentally.
对一种非线性波导耦合腔进行了理论和实验研究。
3
The multilayered waveguide memory is a promising subject in the optical storage field.