Reverse wave beam control method for retrodirective discrete array

A technology of direction backtracking and beam control, applied in the direction of automatic power control, electrical components, etc., can solve the problems of inability to support discrete arrays, easy to be maliciously interfered, etc., to achieve the effect of improving security, saving cost and overhead

Inactive Publication Date: 2015-04-01
CHINA ACADEMY OF SPACE TECHNOLOGY
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Problems solved by technology

[0015] The technical problem to be solved by the present invention is to provide a reverse beam control method for direction traceback discrete arrays in view of the deficiencies in the prior art, so as to solve the "conjugate phase mixing" system commonly used by direction traceback arrays and reverse antennas. The unified re...

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  • Reverse wave beam control method for retrodirective discrete array
  • Reverse wave beam control method for retrodirective discrete array
  • Reverse wave beam control method for retrodirective discrete array

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Embodiment Construction

[0038] In the following, the reverse beam steering method of the direction-retrospective discrete array according to the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

[0039] The invention relates to an inverse beam control method that uses discrete and independent non-coherent local oscillators to generate phase-coherent and phase-conjugated microwave signals with a pilot signal, and realizes that the microwave beam pointing backtracks along the incident direction of the pilot signal .

[0040] In the method according to the present invention: 1. Separate the pilot information frequency from the pilot signal frequency, use the pilot information to modulate the carrier, and then insert a sine wave used as a pilot in the modulated signal, and divide the pilot information frequency It is hidden in the pilot signal; 2. As the receiving end of the pilot signal, the "direction traceback discrete array" d...

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Abstract

Provided is a reverse wave beam control method applied to a retrodirective discrete array. The method comprises the following steps: modulating guide information determined by a system to carrier frequency capable of real-time frequency adjusting to generate a reverse guide signal; sending the signal to the retrodirective array; carrying out demodulation on the received signal by the retrodirective array to obtain the guide information and calculating conjugate phase of the guide information; synthesizing a conjugate phase signal according to the conjugate phase obtained from calculation; and carrying out power amplification on the conjugate phase signal and emitting the signal through the retrodirective array. The method enables incoherent local oscillators which are independent mutually and are in a discrete state to generate the microwave signal which is coherent in phase and of which the phase is conjugate with that of the guide information, and realizes reverse wave beam control of the microwave beam backtracking along the incidence direction of the guide signal, thereby protecting system core frequency secret safety, avoiding malicious interference through frequency hopping and improving anti-interference capability of the system.

Description

technical field [0001] The invention belongs to the field of energy wireless transmission, and in particular relates to a reverse beam control method of a direction-retrospective discrete array used in microwave wireless energy transmission and automatic tracking communication systems. Background technique [0002] At present, the main ways to realize wireless energy transmission are: laser, ultrasonic, electromagnetic coupling and microwave. They have their own scope of application. In the case of short distance, you can choose ultrasonic and electromagnetic coupling; in the case of long distance, you can choose laser or microwave. Laser technology realizes medium and long-distance energy transmission. Its advantage is narrow beam, and its disadvantages are low conversion efficiency and limited power capacity. One goal of laser wireless energy transmission is to improve the conversion efficiency, reaching or approaching the conversion efficiency of microwave wireless ener...

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Application Information

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IPC IPC(8): H03L7/26
Inventor 刘海涛侯欣宾王立刘宇飞
Owner CHINA ACADEMY OF SPACE TECHNOLOGY
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