A radar-communication integration method based on step-variable frequency waves

A radar signal and radar technology, applied in the direction of radio wave reflection/re-radiation, radio wave measurement system, special data processing application, etc., to achieve the effect of facilitating equipment networking, strong practicability, and ensuring stability

Inactive Publication Date: 2017-01-11
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To sum up, these existing radar-communication integration methods are all based on the pulse radar system, which has certain application limitations

Method used

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  • A radar-communication integration method based on step-variable frequency waves
  • A radar-communication integration method based on step-variable frequency waves
  • A radar-communication integration method based on step-variable frequency waves

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0056] Device A and device B both use independent transmitting and receiving antenna configurations. The distance between the two devices is 15m. The remaining parameters are the same, each frequency step is 2MHz, the number of frequency points is 301, the bandwidth is 600MHz, the duration of each frequency point is 100μs, and the subcarrier frequency The communication symbol rate is 500kbps. Set a target at a location 10m away from device A.

[0057] According to the processing steps of the present invention, in the first step, the device A generates two mutually orthogonal sub-carrier frequency signals Cos (2 × 10 6 πt) and Sin(2×10 6 πt).

[0058] In the second step, a differential encoder is used to encode the communication baseband signal sent by device A. For example, when the encoder input is: 0,0,1,0,1,1,0,1,1,1,0,0…, the output of the differential encoder is: 0,1,1,1,0 ,1,1,0,0,1,0….

[0059] In the third step, when the output of the differential encoder is 0, ...

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Abstract

The present invention provides a radar-communication integration method based on step frequency conversion waves. The frequency source modulates the radar signal and the communication signal to two non-interfering step frequency sub-frequency through the orthogonal modulation technology and transmits them into the space without interference. , the receiving end uses the quadrature mixing technology to separate the beat radar signal and the communication signal. There is no mutual interference between the radar signal and the communication signal, which not only ensures the radar detection performance, but also ensures the stability of the communication. Compared with the existing radar-communication integration system based on pulse signals, the instant transmission power required by the present invention is lower when the same detection energy is achieved, so the hardware structure of the device designed according to the method of the present invention can be simpler, Moreover, the resource reuse rate is high, which can effectively reduce the cost of equipment and improve reliability.

Description

technical field [0001] The invention relates to communication and radar networking detection technology. Background technique [0002] Radar-communication integration refers to the technology of using one device platform to simultaneously realize the two functions of radar detection of targets and data communication between devices. In order to meet the requirements of inter-radar network detection and real-time processing of complex signals, modern radars need to exchange a large amount of data with other devices. Therefore, how to use the same device to realize radar detection and data communication has attracted the attention of research institutions in various countries. Attention has been developed rapidly. [0003] At present, radar-communication integration is mainly divided into hardware integration and signal integration. Hardware integration means that radar signals and communication signals share the transceiver antenna, transmitter, receiver or some units in ot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/42G06F19/00H04B1/52
CPCG01S13/02H04B1/525
Inventor 崔国龙叶为胡飞易川孔令讲杨晓波易伟
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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