supported by the National High Technology Research and Development Program of China(863 Program,18-H863-04-2T-003-019-01)。
In order to study the optimization configuration problem of bistatic sonar system,the optimal configuration model of bistatic sonar system was established.The positioning accuracy of the dual-base sonar at different d...
supported by the National Natural Science Foundation for Young Scientists of China(51309191);the National Natural Science Foundation for Young Scientists of China(11704313);the National Natural Science Foundation for Young Scientists of China(61701405)
In order to suppress the influence of symmetrical noise component on multiple-input multiple-output(MIMO)sonar’s direction of arrival(DOA)estimation under the condition of low signal-to-noise ratio,we propose a DOA e...
supported by the National Natural Science Foundation of China(61379008)
The ranges and radial velocities of targets are interesting parameters in the active sonar, which can't be observed directly but can only be estimated. Firstly, by making use of the delay-Doppler model of multi-targe...
supported by the National Natural Science Foundation of China(11304343)
With the increasing of detection ability of passive sonar,the weak signal detection problem in multiple interferences becomes more and more important.In the time/bearing record(TBR) display of sonar detection,when t...
A design of a kind of sonar transducers was presented. An experimental system was developed for producing the sound signal based on the laser-induced breakdown and bubble oscillation. The power spectrum and the ambigu...
A passive synthetic aperture based on phase correction algorithm for solving the port-starboard discrimination problem in the non-aligned towed twin-line array sonar, is described. This method creates a virtual array ...
This work was supported by the National Natural Science Foundation of China (No.60532040).
The interference characteristics of towed platform noise resulted from propeller and towed body for active/passive towed array is analyzed. It is shown that, in shallow water environment, the direct wave and bottom/se...
Aimed at the low noise design of sonar dome in ships, a method has been presented for calculating the sonar self noise of a simplified sonar dome consisting of sandwich acoustic window and parallel acoustic cavity, wh...
This Work was supported by the National Excellent Doctoral Dissertation Author Foundation of China under Grant No. 199939.
Based on a combined sensor with the size of 10 cm, a narrow beam with a constant receiving beam width of 20 degree has been formed in low frequency from several Hz to thousands of Hz by using simple adaptive algorith...
Background equalization technique has been extensively studied in the field of fre quency spectrum analysis. It has been proved an effective method to improve line spectrum extraction. In a multi-beam digital sonar ...