Method for generating optimal protection channel of MIMO radar antenna

A technology for protecting channels and radar antennas, applied in radio wave measurement systems, instruments, etc., can solve problems such as the inability of MIMO radar to set up auxiliary channels, and achieve the effect of low hardware requirements and strong applicability

Inactive Publication Date: 2019-12-10
NANJING HURYS INTELLIGENT TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] Most of the existing protection channel generation technologies need to set up auxiliary antennas in the array antenna, but in practical applications, it is impossible to set up a separate auxiliary channel for existing MIMO radars

Method used

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  • Method for generating optimal protection channel of MIMO radar antenna
  • Method for generating optimal protection channel of MIMO radar antenna
  • Method for generating optimal protection channel of MIMO radar antenna

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Embodiment Construction

[0030] The implementation of the technical solution will be further described in detail below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0031] like figure 1 As shown, an embodiment provided by the present invention: a method for generating an optimal protection channel for a MIMO radar antenna, comprising the following steps:

[0032] Step 1: Transmit radar signals to targets within the set range through the MIMO antenna, and generate initial protection channels through the echo signals of the targets;

[0033] Step 2: Initialize parameters: including the initial protection channel parameter vector H, the upper and lower limits of the search range required by the mode search algorithm, the iteration step size, and the termination condition; if the MIMO antennas are N transmitting and M receiving...

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Abstract

The invention discloses a method for generating an optimal protection channel of an MIMO radar antenna, and the method comprises the following steps: transmitting a radar signal to a target object ina set range through the MIMO antenna, and generating an initial protection channel through an echo signal of the target object; initializing parameters, wherein the parameters comprise an initial protection channel parameter vector; setting a cost function according to the requirement of the optimal protection channel; optimizing the initial protection channel parameter vector for multiple times by adopting a mode search algorithm; and taking a protection channel parameter vector enabling the cost function to be minimum after multiple times of optimization, and taking the protection channel parameter vector as an optimal protection channel generation vector to generate an optimal protection channel. According to the method, parameter weighting is performed on the antenna output signal to synthesize the protection channel so as to suppress the sidelobe, the method is applied to the MIMO radar, an auxiliary antenna does not need to be independently arranged, and the hardware requirementis low.

Description

technical field [0001] The invention discloses a method for generating an optimal protection channel of a MIMO radar antenna, and relates to the technical field of traffic radar antennas. Background technique [0002] The purpose of generating the protection channel is to prevent the radar from being affected by the interference signal in the sidelobe direction. Its working principle is: each channel is composed of a transceiver antenna, a receiver, a detector and a comparator. The amplitude of the signal phase is compared. If the echo in the auxiliary channel is greater than that of the main channel, the gate is closed and the signal of the main channel is blanked. The auxiliary antenna beam main lobe should be wide enough to cover all side lobe areas of the main beam, greater than the gains of all side lobes of the main beam and smaller than the side lobe gains. [0003] Most of the existing protection channel generation technologies require an auxiliary antenna in the ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/35G01S7/36
CPCG01S7/354G01S7/36
Inventor 胡文赵月
Owner NANJING HURYS INTELLIGENT TECH CO LTD
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