In order to solve the problem of the sensor location uncertainty for a towed line array, the sample matrix of the signal and time-space curve equations of the simulated array shape are presented in this paper. Average...In order to solve the problem of the sensor location uncertainty for a towed line array, the sample matrix of the signal and time-space curve equations of the simulated array shape are presented in this paper. Average beampatterns of randomized processing are given too . The quantitative results of array shape variation and distortion losses are obtained from the comparison between the computer simulation and the experimental results. In addition, a model for estimating array shape is offered. An experiment on dynamical beamforming is carried out. The results show that SNR improvement of about 4dB may be obtained by dynamic compensation for a small array when the distortion is medial and the tow speed is low.展开更多
文摘In order to solve the problem of the sensor location uncertainty for a towed line array, the sample matrix of the signal and time-space curve equations of the simulated array shape are presented in this paper. Average beampatterns of randomized processing are given too . The quantitative results of array shape variation and distortion losses are obtained from the comparison between the computer simulation and the experimental results. In addition, a model for estimating array shape is offered. An experiment on dynamical beamforming is carried out. The results show that SNR improvement of about 4dB may be obtained by dynamic compensation for a small array when the distortion is medial and the tow speed is low.
