Software radio in cognitive passive radar system and realization method

Abstract

The invention belongs to the passive radar field. A software radio technology is introduced into a passive radar system. A new solution approach is provided for construction of a multi-standard and multi-type compatible cognitive passive radar system. A software radio in a cognitive passive radar system comprises a signal generator, a radio frequency antenna, a VHS-ADC multichannel analog-to-digital conversion board card of a Lyrtech software radio platform and a DRC interface board, wherein the signal generator and the radio frequency antenna are used for emitting an electromagnetic wave andsimulating an external radiation source signal; the VHS-ADC multichannel analog-to-digital conversion board card of the Lyrtech software radio platform is used for carrying out high speed acquisitionon the external radiation source signal; a DRC module and a support plate can carry out high-speed digital signal transmission; a FPGA is taken as a base-band processing plate and is used for exploiting and testing a signal processing algorithm; and data which is processed by the FPGA and an exploitation environment MATLAB / Simulink / LSP / VC++ carry out man-machine interaction through a CPCI bus. Thesystem and the method are mainly applied to a passive radar design and manufacturing occasion.

Description

technical field [0001] The invention belongs to the field of passive radar, and specifically relates to an application method of software radio in a cognitive passive radar system. Background technique [0002] The difference between the passive radar system and the traditional radar is that it does not emit electromagnetic waves, but uses external radiation sources to detect and track the target. Anti-anti-radiation missiles, anti-stealth "four anti-" capabilities, and no need for spectrum allocation, and will not produce electromagnetic pollution. Since the radar itself only needs to have the ability to receive, the system has the characteristics of portability. With the development of wireless communication, researchers are working on exploring the application of broadband wireless communication illumination source in passive radar. Based on this, the future passive radar illumination sources will present complex and heterogeneous characteristics, and the passive radar ...

AI Technical Summary

Problems solved by technology

Based on this, the future passive radar illumination sources will show complex and heterogeneous characteristics, and the passive radar system with a single system will be greatly restricted

Therefore, it has become a research hotspot to propose a multi-standard and multi-standard compatible passive radar architecture to effectively solve the problem of complex and heterogeneous radar illumination sources. [1]

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