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Bistatic MIMO radar life detection method based on propagation operator

A technology of propagating operators and life detection, which is applied in the fields of electric/magnetic exploration, geophysical measurement, measuring devices, etc., and can solve problems such as large amount of computation

Pending Publication Date: 2021-09-07
SOUTHEAST UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the computational load of the method is still relatively large, and its rationality and practicability need to be verified in practice, which can be reduced by further optimization.

Method used

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  • Bistatic MIMO radar life detection method based on propagation operator
  • Bistatic MIMO radar life detection method based on propagation operator
  • Bistatic MIMO radar life detection method based on propagation operator

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Embodiment Construction

[0037] Embodiments of the present application are described below in conjunction with the accompanying drawings. Apparently, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Those of ordinary skill in the art know that, with the development of technology and the emergence of new scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0038] The present invention provides a bistatic MIMO radar life detection method based on a propagation operator. The specific method includes the following steps:

[0039] Step 1: Calculate the output signal of the virtual array.

[0040] The system structure diagram of bistatic MIMO life detection radar described in the present invention is as follows figure 2 shown. Both the transmitting array and the receiving array adopt an equidistant uniform linear array, with M transmitting arra...

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Abstract

The invention discloses a bistatic MIMO radar life detection method based on a propagation operator. The method comprises the steps of: carrying out matched filtering on an echo signal of a radar, constructing an output signal matrix of a virtual array, carrying out the finite sub-elementary row-column transformation of the output signal matrix, carrying out the decomposition, constructing a propagation operator, solving a minimum cost function of the propagation operator to obtain a solution of the propagation operator, performing eigenvalue decomposition on the matrix to obtain a diagonal matrix to realize parameter matching, and calculating estimation of an azimuth angle through the diagonal matrix to obtain a life position. The bistatic MIMO radar life detection method is high in distance and angle positioning precision, can enhance the target positioning, tracking and detection capability, is high in anti-interference capability, has fine speed resolution potential, and is high in detection capability in a disaster environment.

Description

technical field [0001] The invention relates to a radar signal processing technology, in particular to a propagation operator-based bistatic MIMO radar life detection method. Background technique [0002] The Multiple-input Multiple-output (MIMO) system is one of the hot research technologies in the fields of communication and detection in recent years, and it has a wide range of applications in military and civilian applications. The core content of MIMO radar technology is to use multiple sets of mutually orthogonal signals to irradiate the target, and the receiving antenna receives the target echo signal and performs matching filtering on it, so as to obtain the estimation of the target's spatial position and other parameters. Compared with traditional phased array radar technology, MIMO radar has higher accuracy in estimating target parameters. The present invention focuses on bistatic MIMO radars. [0003] Life-through-the-wall detection technology is a new technology...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/88G01S7/41G01V3/08
CPCG01S13/88G01S7/418G01V3/08
Inventor 陈鹏杨清元史弘历
Owner SOUTHEAST UNIV
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