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Simulation method for statistical MIMO (multiple input multiple output) radar target detection under condition of colored Gaussian noises

A radar target, colored noise technology, applied in the field of statistical MIMO radar target detection

Inactive Publication Date: 2012-07-25
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is: aiming at complex channel transmission environments such as target RCS partial correlation between observation channels, a simulation method for statistical MIMO radar target detection under Gaussian colored noise environment is proposed

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  • Simulation method for statistical MIMO (multiple input multiple output) radar target detection under condition of colored Gaussian noises
  • Simulation method for statistical MIMO (multiple input multiple output) radar target detection under condition of colored Gaussian noises
  • Simulation method for statistical MIMO (multiple input multiple output) radar target detection under condition of colored Gaussian noises

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Embodiment

[0079] In the present invention, the geometric relationship of the MIMO radar system is as follows figure 1 As shown, the transmitting end and the receiving end can be in the same base or in multiple bases, and the array can be a uniform linear array or a non-uniform linear array. figure 1 The received signal model is expressed as:

[0080] r ( t ) = E M Hs ( t - τ ) + n ( t ) - - - ( 1 )

[0081] figure 2 is the matched filter processing flow in the present invention, where i=1, L M is the conjugate of the transmitted signal, after matching processing, we can get

[0082] x = ...

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Abstract

The invention discloses a simulation method for statistical MIMO (multiple input multiple output) radar target detection under the condition of colored Gaussian noises. Under the condition of target RCS (radar cross-section) partially-correlated complex channels among observation channels, firstly, the sufficient statistic of target detection is obtained by using the matrix inversion lemma under the condition of a specific target model, and then, the simulation method for statistical MIMO radar target detection is deduced by using a characteristic value and a characteristic function. By usingthe method disclosed by the invention, a channel environmental condition can be truly simulated for the target detection of statistical MIMO radars in the background of colored Gaussian noises.

Description

technical field [0001] The invention belongs to the field of statistical MIMO radar target detection, relates to a simulation method in the field of statistical MIMO radar target detection, and is suitable for statistical MIMO radar system target detection in a Gaussian colored noise environment. Background technique [0002] Inspired by MIMO communication theory and the concept of Synthetic Pulse Aperture (SIAR) radar, as well as the radar's demand for new theories and technologies, Bell Labs proposed MIMO radar with full diversity of transceivers, also known as statistical MIMO (S-MIMO) radar , this kind of radar uses the idea of ​​space diversity in communication, and makes each receiving signal completely independent by increasing the distance between each array element, so as to obtain space diversity gain, which is coherent with the receiving signal of each array element required by phased array radar. Totally different. In the transceiver full-diversity MIMO radar, t...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/41
Inventor 曹宁刘伟伟
Owner HOHAI UNIV