The article proposes an multi-subarray amplitude-phase united detection method simultaneously using information of amplitude and phase of echo from sea bottom and integrating the merits of the two traditional methods,which not only realizes the super-wide coverage,but also improves the detection performance.

Numerical analysis of stress deformation behavior of concrete diaphragm wall in supper-deep overburdened layer of Yele Hydropower Station;

Constructive training algorithm based on hypercube covering;