Shell sonar and towed linear array sonar target track association method
A technology of towed line array and target track, which is applied in the field of correlation between shell sonar and towed line array sonar target track. Problems such as starboard and starboard ambiguity can be achieved to improve the correlation accuracy and increase the robustness
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[0105] Set a moving target to move at a uniform angle (0.1° or 1° for each batch of samples) from the 90° direction of the observation point, and the system error and random error when the shell sonar detects the target orientation are both 1° or 2° In this case, the systematic error and random error when the towed line array sonar detects the target azimuth varies from 1° to 10°, and the maximum energy fluctuations when the shell sonar and towed line array sonar detect the target are both 30%. Uniform distribution, the maximum error of DEMON spectral feature extraction is 1Hz, obeying uniform distribution. The comparison between pure orientation correlation and orientation, energy, and DEMON multi-feature joint track correlation algorithm is shown in the figure Figure 1-4 mentioned.
[0106] It can be seen from the figure that in view of the large difference in direction finding accuracy characteristics between the shell sonar and the towed line array sonar, which affects t...
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