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A method for satellite navigation multi-beam formation

A satellite navigation, multi-beam technology, applied in satellite radio beacon positioning systems, radio wave measurement systems, diversity/multi-antenna systems, etc., can solve the problem of not guaranteeing the antenna phase center constraints, not reducing beam interaction, etc. Achieve the effect of improving accuracy and reducing inter-beam interference

Active Publication Date: 2016-01-20
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Abstract
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  • Application Information

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Problems solved by technology

[0007] The main problem of the existing multi-beamforming method is: in the weight calculation process, there is no constraint condition to ensure that the phase center of the antenna remains unchanged, and the mutual influence between the beams is not reduced.

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  • A method for satellite navigation multi-beam formation
  • A method for satellite navigation multi-beam formation
  • A method for satellite navigation multi-beam formation

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Embodiment Construction

[0029] Below in conjunction with specific embodiment and accompanying drawing, the present invention will be further described:

[0030] The flow chart of the beamforming method of the present invention is as follows figure 1 As shown, this beamforming method specifically includes steps:

[0031] Step 101: Determine the expected phase value of the phase center of the array antenna Φ.

[0032] Step 102: Add antenna phase center constraints and inter-beam interference suppression constraints in the weight calculation process

[0033] Σ n = 1 N w n i a n i ( θ i ...

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Abstract

The invention discloses a satellite navigation multi-beam forming method, which relates to a multi-beam forming method of satellite navigation transmitting equipment on the basis of an array antenna. The method comprises the following steps: firstly, determining the phase value of desired antenna phase center; secondly, adding constraint conditions ensuring the antenna phase center constant and intra-beam interference suppression constraint conditions during weight calculation process; and thirdly, before weight output, correcting the antenna phase center as per the damage condition of an array element. Through the method, the antenna phase center can be ensured constant and the intra-beam interference is ensured to be minimal; and the method has the advantages of simplicity and practicality.

Description

technical field [0001] The invention relates to a multi-beam forming method of a satellite navigation transmitting device, in particular to a beam forming method of a satellite navigation transmitting device based on an array antenna. Background technique [0002] At present, array signal processing has been applied to communication, radar, sonar and other systems, and has the characteristics of flexible processing and strong anti-interference ability. The beamforming method is an important technology in array signal processing. The beamforming method is to calculate a set of weights. According to this set of weights, the array antenna can generate spatially oriented beams, form a main beam in a set direction, and receive user signals. [0003] For the transmitting equipment, the process of digital multi-beam forming is: first calculate the multi-beam weight, and perform digital multi-beam synthesis on the baseband signal according to the weight. After receiving the radio f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/06G01S19/02G01S19/37
Inventor 魏海涛叶红军郑晓冬尹继凯李隽张金涛
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP