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A digital array radar optical fiber transmission network and a control method thereof

A digital array radar and optical fiber transmission technology, applied in optical fiber transmission, optical multiplexing systems, electromagnetic transceivers, etc. Problems such as limited signal transmission rate

Active Publication Date: 2019-04-09
CHENGDU CHENGDIAN GUANGXIN TECH
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Problems solved by technology

[0003] According to the development characteristics of radar sensors, digital array radar has massive data transmission needs. At present, the existing technical solutions have transmission methods based on electrical signals, but the transmission rate of electrical signals is limited and there is a problem of mutual signal interference for complex networking itself. , so the transmission method based on electrical signals cannot meet the development needs of this new complex digital array radar

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  • A digital array radar optical fiber transmission network and a control method thereof
  • A digital array radar optical fiber transmission network and a control method thereof
  • A digital array radar optical fiber transmission network and a control method thereof

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Embodiment Construction

[0033] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0034] Any feature disclosed in this specification, unless specifically stated, can be replaced by other alternative features that are equivalent or have similar purposes. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0035] Radar transmission network interconnection requirements such as figure 1 As shown, the system consists of a processor and multiple sub-arrays, and the processor and sub-array sensor units are interconnected through a transmission network. There are the following communication requirements between the processor and the subarray.

[0036] In order to describe the communication relationship between sensor nodes more conveniently, the definition is as follows: the communication relationship matri...

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Abstract

The invention discloses a digital array radar optical fiber transmission network and a control method thereof, the optical fiber transmission network comprises a wavelength division multiplexing / demultiplexing unit and a 1: M power divider, wherein the wavelength division multiplexing / demultiplexing unit is connected with a processor through a single-mode optical fiber and is connected with each sub-array in an array surface through the single-mode optical fiber, the 1: M power divider is connected with the wavelength division multiplexing / demultiplexing unit through a single-mode optical fiber and is connected with each sub-array in the array surface through the single-mode optical fiber, M is the number of the sub-arrays in the array surface, and each sub-array is composed of a pluralityof T / R module sub-array units. According to the invention, based on the WDM technology and the PON technology, the transmission of downlink digital signals, downlink analog signals and uplink digitalsignals are supported, a time division multiplexing mechanism is adopted for the uplink digital signals, so that the competition phenomenon when the sub-arrays send data to the process is avoided; and a broadcasting mechanism is adopted for the downlink analog and digital signals so as guaranteed that all subarray units receive the same data.

Description

technical field [0001] The invention relates to the technical field of digital array radar transmission network design, in particular to a digital array radar optical fiber transmission network and a control method thereof. Background technique [0002] The development of radar array technology roughly experienced three main processes, that is, from the original passive array to the active array, and now to the digital array that has become a research hotspot. In recent years, digital array radar has developed rapidly. Both its receiver and transmitter adopt digital beamforming technology, which has good flexibility and versatility. With the rapid development of ultra-large-scale digital circuits, ultra-high-speed processing chips and other technologies, digital Array radar is gradually replacing conventional analog radar. The strong real-time and mass data transmission characteristics of digital array radar put forward new requirements for the design of radar high-speed tra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/25H04B10/40H04J3/16H04J14/02H04Q11/00
CPCH04B10/25H04B10/40H04J3/1652H04J14/0202H04J14/0204H04J14/0209H04J14/0227H04Q11/0067
Inventor 解军张敏蒲剑
Owner CHENGDU CHENGDIAN GUANGXIN TECH
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