Channel Separation Method and Microwave Bridge System Based on Microwave Bridge Network

A microwave bridge and channel technology, applied in the field of terahertz signal separation, can solve the problems of very high signal processing speed and lack of real-time signal processing capabilities, and achieve the effect of avoiding channel separation and increasing communication rate

Active Publication Date: 2019-10-08
INST OF ELECTRONICS ENG CHINA ACAD OF ENG PHYSICS
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Problems solved by technology

Since the terahertz frequency band is generally used for high-speed communication, the requirements for signal processing speed are very high, and currently there is no complex real-time signal processing capability

Method used

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  • Channel Separation Method and Microwave Bridge System Based on Microwave Bridge Network
  • Channel Separation Method and Microwave Bridge System Based on Microwave Bridge Network
  • Channel Separation Method and Microwave Bridge System Based on Microwave Bridge Network

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Embodiment Construction

[0021] A method for channel separation based on a microwave bridge network, the specific steps of the separation method are:

[0022] First, the two terahertz signals are respectively input into two first-level microwave bridges, and each terahertz signal is divided into two output signals with equal power after passing through the first-level microwave bridge; the two-way output signals of each first-level microwave bridge The output signals are respectively input to two first-level power combiners; each first-level power combiner inputs two output signals from different first-level microwave bridges, and then outputs one output signal; the output of each first-level power combiner The signals are input to two secondary microwave bridges respectively, and are divided into two output signals after passing through the secondary microwave bridge. The two output signals of each secondary microwave bridge respectively reach two secondary power combiners and output; similarly, when...

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Abstract

The present invention discloses a microwave bridge network-based channel separation method and a microwave bridge network thereof. According to the network, two signals are separately input into transmit antennas, after the two signals pass a wireless channel, two receive antennas simultaneously receive two signals of the same power, and signals output by the receive antennas pass the microwave bridge, then arrive at a power synthesizer and are output. When two or more signals are input, things are deduced by analogy. Due to use of the mature microwave bridge technology, digital domain signal processing is not performed in a receiving end, and channel separation is carried out before analog-digital conversion, so that a 2*2 THz-MIMO communication system is realized. Due to use of the MIMO technology, the communication rate is doubled. In the receiving end of the communication system, a channel separation network is built by using the microwave bridge, so that the MIMO technology can be used in terahertz communication.

Description

technical field [0001] The invention relates to a terahertz signal separation technology, in particular to a method for channel separation based on a microwave bridge network and a microwave bridge system thereof. Background technique [0002] The multiple transmit multiple receive technology (MIMO) has been fully researched in wireless communication, and has been successfully applied in existing communication systems, such as IEEE802.11n.LTE and so on. The key to MIMO technology is the beamforming design at the transceiver end, so that the receiver can separate several independent sub-channels, and each sub-channel is the traditional single-send-single-receive communication mode. Thus, the communication rate can be increased without increasing the bandwidth. A prerequisite for MIMO technology to perform channel separation is the Rayleigh channel, because the Rayleigh channel, that is, the complex Gaussian channel, has rich scattering paths in space. MIMO technology uses th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04B7/0413H04B7/06
Inventor 赵磊蒋均黄昆吴秋宇林长星陆彬成彬彬邓贤进
Owner INST OF ELECTRONICS ENG CHINA ACAD OF ENG PHYSICS
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