Same-frequency interference characterization method for WLAN (Wireless Local Area Network) system of unmanned aerial vehicle and interconnected vehicle
A co-channel interference and UAV technology, applied in the field of UAV communication, can solve the problem of not being able to well characterize the co-frequency interference between UAVs and interconnected vehicle WLAN systems, so as to reduce adjacent channel interference and suppress band The effect of outgoing
Pending Publication Date: 2022-03-22
浙江建德通用航空研究院 +1
View PDF0 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] Purpose of the invention: The present invention provides a method for characterization of co-frequency interference between UAV and interconnected vehicle WLAN system to solve the technical problem that the prior art cannot well characterize co-frequency interference between UAV and interconnected vehicle WLAN system
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
[0176] This embodiment provides a method for characterization of co-channel interference between a UAV and an interconnected vehicle WLAN system. The execution flow of the method is as follows figure 1 , figure 2 shown, including the following steps:
[0177] S1. Construct the same-frequency interference model between the UAV and the connected vehicle WLAN system; among them, based on the MCL method, simulate the real interference effect of the UAV on the connected vehicle WLAN system when the satellite fixed service communicates, assuming satellites, UAVs and The interfered connected vehicle WLAN receivers are located on the same horizontal line, they point towards each other in the direction of the azimuth between the drone and the interfered receiver;
[0178] S2, considering that the antenna direction of the interfered receiver is relatively free, it is set to point directly at the UAV, and the component and array gain are set to the maximum value; study the frequency-de...
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 provides a co-frequency interference characterization method for an unmanned aerial vehicle and an interconnected vehicle WLAN system. The method comprises the following steps: constructing a co-frequency interference model for the unmanned aerial vehicle and the interconnected vehicle WLAN system; the antenna direction of an interfered receiver is relatively free, it is assumed that the antenna direction directly points to the unmanned aerial vehicle, and element and array gains are set to be maximum values; the frequency-dependent suppression of an interfered receiver is researched to adapt to channel interference, and two orthogonal frequency division multiplexing waveforms, namely cyclic prefix orthogonal frequency division multiplexing and windowing orthogonal frequency division multiplexing, are adopted in unmanned aerial vehicle communication to suppress out-of-band emission of the unmanned aerial vehicle and reduce adjacent channel interference; meanwhile, the same-frequency interference of the unmanned aerial vehicle to the WLAN system of the interconnected vehicle is researched, and related operation standards of the unmanned aerial vehicle are given. The method can provide guidance for technical research of unmanned aerial vehicle interference avoidance, system frequency rules and the like.
Description
technical field [0001] The invention relates to the technical field of unmanned aerial vehicle communication, in particular to a method for characterization of co-frequency interference between an unmanned aerial vehicle and an interconnected vehicle WLAN system. Background technique [0002] In recent years, the UAV communication system has become a research hotspot in the field of wireless communication due to its advantages of flexible maneuverability, strong controllability, and easy deployment. In order to lay the foundation for the "Internet of Drones" era, UAV communication must support ubiquitous coverage, low latency, high reliability, and high throughput to achieve safe operation of UAVs. Compared with ground communication, non-line-sight (NLoS) transmission is the main method due to multipath and obstacles. UAV communication can flexibly deploy UAVs according to the actual geographical location. , LoS) transmission, effectively reducing path loss and greatly impr...
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 Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/391H04B17/345
CPCH04B17/391H04B17/345
Inventor 王茂霖吕人力管祥民马旭蔡惠宁
Owner 浙江建德通用航空研究院