Direction of arrival (DOA) fast estimation method
A direction-of-arrival and fast technology, applied in the field of communication, can solve the problems of low signal resolution, low resolution of incident signal, shortening time-consuming DOA calculation, etc.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment
[0054] Embodiment: a kind of DOA fast estimation method of this embodiment, such as figure 1 shown, including the following steps:
[0055] Signal preprocessing stage:
[0056] (1) Suppose there are K signals, among which the first Kc signals are correlated signals, and the remaining signals are independent signals and independent of the first Kc signals. Incident to such as figure 2 The uniform linear array shown is composed of M=2N+1 omnidirectional array elements with a spacing of d, and the array element 0 is used as a reference array element,
[0057] According to formula (2), the covariance matrix of the array output signal vector is estimated, namely
[0058]
[0059] in:
[0060] N is half of the total number of omnidirectional array elements, and the total number of omnidirectional array elements is 2N+1 (including 0 array elements as reference array elements);
[0061] x=[x(-N),...,x(0),...,x(N)] is the output signal vector of the array;
[0062] Is the c...
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