Method for constructing base station signal field intensity map based on compressed sensing
A technology of compressed sensing and signal field, which is applied in 2D image generation, image data processing, transmission monitoring, etc. It can solve the problems that are not fully applicable to wireless signal field strength maps, etc., and achieve reduced actual measurement workload, high accuracy, and improved The effect of efficiency and accuracy
Active Publication Date: 2014-04-23
UNIV OF ELECTRONICS SCI & TECH OF CHINA
View PDF1 Cites 7 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0008] The above methods are not fully applicable to the construction of wireless signal field strength maps
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0043] This embodiment introduces a method for establishing a base station signal field strength map based on compressed sensing, as shown in the attached figure 1 shown, including the following steps:
[0044] (1) First, collect some existing base station signal high-resolution field strength maps, and use the KSVD algorithm to decompose the sparse redundant dictionary to obtain a redundant dictionary library corresponding to the wireless signal field strength map.
[0045] (2), to figure 2 Take the field strength map example in , as an example, and set the resolution of the final restored field strength map to 50×50. right figure 2 Perform ordinary Kriging algorithm interpolation to obtain a 50×50 preliminary interpolation map, such as image 3 As shown, its image matrix is expressed as C, and the corresponding column-wise vectorization form of the map matrix is expressed as
[0046] (3) Let the field strength values of all 625 measured points in the map matrix...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to the technical field of compressed sensing and the technical field of wireless communication, such as mobile communication and wireless communication, in particular to a method for constructing a base station signal field intensity map based on compressed sensing in mobile communication networks such as Wi-Fi (wireless fidelity) wireless local area networks and cellular communication. The method is based on the sparse decomposition and compressed sensing technology of a redundant dictionary, and through constructing a special observing matrix, a high-resolution field intensity distribution map is constructed on the basis of a low-resolution single-frame actual measuring field intensity map. Through the method provided by the invention, the wireless signal field intensity map can be effectively subjected to recovery reconstruction, the work load of measuring the signal field intensity values in the off-line stage in the application such as wireless network planning and wireless field intensity positioning can be actually reduced, and the construction efficiency and the accuracy of the signal intensity map can be improved.
Description
technical field [0001] The present invention relates to the field of compressed sensing technology and wireless communication technology, such as mobile communication and wireless communication, and in particular to a method for establishing a base station signal field strength map based on compressed sensing in mobile communication networks such as Wi-Fi wireless local area network and cellular communication. Background technique [0002] In the mobile communication network, the geographical distribution of the field strength of the base station signal is the field strength map, which is very valuable data in wireless communication operations. Applications. However, the wireless signal field strength map is difficult to obtain in a simple manner. This is mainly caused by the complex propagation environment of wireless signals. In the mobile communication network, the propagation path between the base station and the receiver is very complicated, ranging from simple line-o...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G06T11/00H04B17/00H04B17/318
Inventor 卓永宁
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA