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Networking method for stepping variable-frequency radar communication integration

A radar and networking technology, which is used in the reflection/re-radiation of radio waves, special data processing applications, measurement devices, etc. Complex, unpractical, etc.

Inactive Publication Date: 2014-12-17
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the simple and concealed communication characteristics of spread spectrum technology, it is widely used in vehicle collision avoidance systems and intelligent transportation systems, but the peak side lobe ratio of this radar system is easily affected by the spreading factor and Doppler frequency shift, and the communication The rate is relatively low, such as the PulsON 410 radar of Time Domain Company; while the implementation of OFDM technology is complicated, the peak average power required is relatively high, the clock synchronization has high requirements, the signal processing is difficult, and the cost is extremely high. Now Still in the research and development stage, not practically applicable

Method used

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  • Networking method for stepping variable-frequency radar communication integration
  • Networking method for stepping variable-frequency radar communication integration
  • Networking method for stepping variable-frequency radar communication integration

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Experimental program
Comparison scheme
Effect test

Embodiment

[0077] 1) Synchronize step-by-step frequency conversion signals between different radars:

[0078] The difference between the starting frequencies of the step-variable frequency signals between different radars is f 0 = 0.1MHz.

[0079] (1) Radar A continuously transmits step-by-step frequency conversion signals, and the signal frequency is:

[0080] f A ( t ) = ( f LA + kΔf ) × rect ( t - kT 0 - T 0 / 2 T 0 ) , k = ...

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Abstract

The invention provides a networking method for stepping variable-frequency radar communication integration. The networking method includes that different radars are differentiated according to difference of communication signals and stepping variable-frequency signals, difference in stepping variable-frequency signals among the different radars is quite small, the stepping variable-frequency signals is a low-frequency single-frequency signal after frequency mixing, and carrier frequency of the communication signals is relatively high, so that communication information and radar information can be demodulated through different filters; distance among the different radars is measured by utilizing a bidirectional communication time method, distance measuring result is transmitted through the communication information, and a radar communication integration network on the basis of radar relative position is set up finally.

Description

technical field [0001] The invention relates to radar communication integration technology, in particular to the distinction and distance measurement between different radars, and is suitable for a network system of fixed-platform short-distance radars. Background technique [0002] Radar communication integration uses a platform and a shared signal for radar detection and data transmission. Radar signals are used to detect targets and measure distances. Communication data is used to distinguish radars and transmit distance measurement information. Multiple radars are combined to form A network that uses data from multiple radars to obtain target information with higher accuracy and more comprehensive and accurate assessments. The radar communication integrated networking system is widely used in the fields of early warning, air defense, reconnaissance and anti-terrorism, and is a typical multi-sensor system networking mode. The distinction between different radars and rang...

Claims

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Application Information

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IPC IPC(8): G01S7/42G06F19/00H04B1/52
CPCG01S13/32G01S13/825G01S13/87
Inventor 崔国龙胡飞叶为易川孔令讲易伟杨晓波姚雪
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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