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Environmental simulator device based on cognitive radio

A cognitive radio and environment simulation technology, applied in the field of interference environment simulator devices, can solve the problems of signal simulation that cannot be seamlessly connected, signal setting flexibility is not enough, signal system diversity is not enough, etc., to achieve equipment mobility and reliability Improved portability, reduced spectrum leakage, and friendly interface

Active Publication Date: 2013-08-07
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the current situation of domestic complex electromagnetic environment simulation is: the density of signal environment is low, the diversity of signal system is not enough, the flexibility of signal setting is not enough, and the simulation of signal cannot achieve seamless connection, etc.

Method used

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  • Environmental simulator device based on cognitive radio
  • Environmental simulator device based on cognitive radio
  • Environmental simulator device based on cognitive radio

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Experimental program
Comparison scheme
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Embodiment Construction

[0018] refer to Figure 1 to Figure 3 , the present invention consists of computer 1, FPGA module 2, first D / A conversion module 3, second D / A conversion module 4, first low-pass filter 5, second low-pass filter 6, quadrature modulator 7 , the third low-pass filter 8, the first coaxial connector 9, the second coaxial connector 10, the amplifier 11, the mixer 12, the fourth low-pass filter 13, the A / D conversion module 14, the first The local oscillator 15, the second local oscillator 16, and the power supply 17 are composed. figure 1 It is an electrical principle block diagram of the present invention, and the embodiment is according to figure 1Connect the lines. The role of computer 1 is to randomly generate signal spectrum information that meets the requirements according to the parameters set by the user. The role of FPGA module 2 is to convert the signal spectrum information into time domain data of the signal, and analyze and process the received interference signal. T...

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Abstract

The invention discloses an environmental simulator device based on cognitive radio, and relates to a generation device of software-hardware combination signals generated by computer simulative interference and real object interference environment in the field of software radio;the environmental simulator device comprises a first D / A conversion module (3), a second D / A conversion module (4), a first low-pass filter (5), a second low-pass filter (6), a quadrature modulator (7), a third low-pass filter (8), a first coaxial connector (9), a first local oscillator (15) and a power supply (17). Theenvironmental simulator device is used for simulative generation of randomly distributed interference signals having different frequencies and different amplitudes within certain time and in certain bandwidth, the cognitive radio detects various present holes through spectrum sensing, and estimates hole quality and performs corresponding signal transmission by the holes. And the environmental simulator device is further characterized by simple circuit structure, high integration degree, reliable performance, simple and convenient operation, good real-time performance, low cost, and the like.

Description

technical field [0001] The invention discloses an interference environment simulator device, which is especially suitable for the debugging and index inspection device of the research of the hole detection object in the cognitive radio and the adaptive transmission object research. [0002] The interference environment can be simulated according to a set of interference scene descriptions, and the interference scene descriptions can be generated by computer software according to requirements. The computer software module transmits the parameters of the interference environment to the hardware, and the physical interference environment simulator generates the actual waveform spectrum by itself for debugging and index inspection. Background technique [0003] In order to carry out scientific experiments on cognitive radio equipment accurately and effectively, it is necessary to generate an analog signal environment with frequency band, density, size and dynamic controllability...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/00
Inventor 刘春冉倪光华牛桂兵
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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