Near-field three-dimensional passive positioning method based on horizontal line array
A passive positioning and linear array technology, applied in positioning, radio wave measurement systems, measuring devices, etc., can solve problems such as difficult to obtain target depth coordinates, and achieve the effect of high-precision three-dimensional passive positioning
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0027] The present invention is described in more detail below in conjunction with accompanying drawing example:
[0028] (1) figure 1 Flow chart for targeting. Set target S 0 depth z 0 , the sea depth is H, and the horizontal line array is placed on the seabed along the x-axis direction, such as figure 2 shown in . S 0 ' for S 0 Regarding the virtual source on the sea surface, the radiation signal is s(t); the speed of sound is c, and the reflection coefficient of the sea surface is -0.9. The distance from the target to the i array element is R ic , virtual source S 0 'The distance to array element i is R ic ', only considering the direct sound and a sea surface reflection, the received signal of each array element under the condition of spherical wave attenuation is:
[0029] r i ( t ) = 1 R ic s ...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com