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Method for realizing high anti-interference unmanned aerial vehicle remote control data link

A technology with high anti-interference and implementation method, which is applied in the field of communication engineering, can solve problems such as high anti-interference and achieve the effects of ensuring safety, high information transmission efficiency, and strong anti-interference ability

Inactive Publication Date: 2010-06-02
BEIHANG UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0007] Therefore, the pure direct spread system and the frequency hopping system can no longer meet the "high anti-interference" requirements of the UAV data link in the deteriorating electromagnetic environment

Method used

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  • Method for realizing high anti-interference unmanned aerial vehicle remote control data link
  • Method for realizing high anti-interference unmanned aerial vehicle remote control data link
  • Method for realizing high anti-interference unmanned aerial vehicle remote control data link

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Embodiment Construction

[0046] The present invention will be further described in detail with reference to the accompanying drawings and embodiments.

[0047] The present invention is a method for realizing a high anti-jamming UAV remote control data link, the process is as follows figure 1 shown, including the following two steps:

[0048] Step 1: transmit data;

[0049] Process such as figure 2 As shown, it specifically includes the following steps:

[0050] 1), serial-to-parallel conversion;

[0051] The binary digital information to be transmitted is serial-to-parallel converted to obtain parallel N-way binary baseband information, where N=2 r , r is a positive integer; the value of N is set according to the needs, the larger N is, the higher the effectiveness of the communication system is, but the greater the complexity of the system is. In order to avoid the system being too complex, the value of N should not be too large. The value is 2.

[0052] 2), parallel N channels of binary baseb...

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Abstract

The invention discloses a method for realizing a high anti-interference unmanned aerial vehicle remote control data link, which comprises two steps of data transmitting and data receiving, wherein the data transmitting comprises the steps of performing serial-parallel conversion, performing M-ary spread spectrum on parallel N-channel binary baseband information to obtain N-channel M-ary spread spectrum information, performing digital modulation, controlling a frequency hopping source to generate frequency hopping carriers by frequency hopping sequences and performing data sending; and the data receiving comprises the steps of receiving transmitted signals for bandpass filtering, synchronizing the system and dehopping, performing M-ary despreading, performing digital demodulation and performing serial-parallel conversion. The method adopts multi-channel M-ary spread frequency technology, and has higher information transmission efficiency compared with single-channel M-ary spread spectrum with high information transmission; the method adopts multi-channel M-ary spread spectrum, and each channel adopts frequency hopping sequences with different lengths and different code rules so that each channel has higher anti-interference ability; and the method adopts the combination of spread spectrum technology and frequency hopping technology, has the ability of resisting narrow-band interference and near-far effect of a frequency hopping communication mode, and meets the requirement of high interference resistance.

Description

technical field [0001] The invention relates to a method for realizing a remote control data link of a highly anti-jamming unmanned aerial vehicle, which belongs to the field of communication engineering. Background technique [0002] Unmanned Aerial Vehicle (UAV), referred to as UAV, is a kind of unmanned aerial vehicle mainly controlled by radio remote control or its own program. It was born in the early 20th century, but its real rise was after World War II. After nearly a hundred years of development, UAVs have been widely used in the fields of military affairs, national economy and scientific research. Contemporary UAVs are responsible for tasks such as ground monitoring, target tracking, and military strikes. Because of their small size and strong flexibility, they play an extremely important role in the military and civilian fields. The performance of the drone's data link directly determines the safety and flight efficiency of the drone's mission, and it is the brai...

Claims

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Application Information

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IPC IPC(8): G08C17/02H04L25/03H04B1/713
Inventor 韦志棉杨丁熊小军
Owner BEIHANG UNIV
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