An Adaptive Beamforming Method for Scattered Communications in Motion
An adaptive beam and scattering communication technology, applied in the field of wireless communication, can solve problems such as poor real-time performance and difficult antennas, and achieve the effects of convenient operation, flexible and controllable beams, and avoiding difficult antenna alignment operations
Active Publication Date: 2016-05-04
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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Problems solved by technology
The invention has the advantages of accuracy, high efficiency, high degree of automation, and convenient operation, and solves the problems of manual or mechanical rotation for antenna alignment operation difficulties and poor real-time performance
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[0025] according to Figure 1 to Figure 2 To further illustrate the present invention, the present invention utilizes the method of digital beam forming to form electronic beams to scan and track in space, to complete the automatic fast link establishment of scattering communication and the real-time alignment of antenna beams in the mobile communication environment. The adaptive array processing unit 8 and the digital beamforming unit 6 are the core components of the system, which are used to complete the generation of the optimal adaptive weight and the adjustment of the amplitude and phase of the digital signal to realize the function of adaptive beamforming; the array The function of antenna 1 is to complete the mutual conversion of space electromagnetic signals and currents. A rationally designed array antenna is the most basic prerequisite for the effective operation of this system; the function of channel correction unit 2 is to compensate multiple radio frequency channe...
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The invention discloses an adaptive beam forming method for moving scatter communication. For the method, array antennas are adopted at a transmitting end and a receiving end, and an adaptive array processing method is adopted on a digital signal part. The adaptive beam forming method specifically comprises the following steps: at the transmitting end, setting an air space searching range, dividing the scanning directions, and sequentially forming electric beams in each scanning direction and transmitting a detection signal by utilizing a beam forming algorithm; and at the receiving end, calculating the direction of the transmitting end by utilizing a direction of arrival estimation algorithm after the receiving end receives the detection signal and transmitting a back signal by the receiving end, finishing handshake authentication of the transmitting end and the receiving end after the transmitting end receives the back signal, and thus realizing rapid initial link establishment at the transmitting end and the receiving end of the scatter communication and automatic tracking alignment of antenna beams in a mobile occasion. The method has the advantages that auxiliary antennas or other communication means are not needed, and the method is accurate, efficient, high in degree of automation and convenient to operate. The method is particularly suitable for rapid link establishment of the scatter communication and real-time alignment of antenna beams in vehicle-mounted and ship moving communication environments.
Description
technical field [0001] The invention relates to an automatic tracking and aligning method for antenna beams used for diffuse communication in motion in the field of wireless communication, and is particularly suitable for fast establishment of diffuse communication links and real-time alignment of antenna beams of both transmitting and receiving parties during movement. Background technique [0002] At present, most scattered communication devices use parabolic antennas with extremely narrow beams, and the antenna beams are fixed. When establishing a communication link, the alignment of the transmitting and receiving antenna beams can only be done manually or mechanically, which is inconvenient to operate and has low precision. Moreover, it is time-consuming and lacks real-time performance, so it can only be applied to the use mode of "quiet communication" or "stop and go", which limits the application occasions of scattering communication; the method of beam alignment by add...
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IPC IPC(8): H04B7/04H04W16/28H04W76/02
Inventor 李弋鹏
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP