Radar interference suppression method, device and electronic equipment based on channel ratio function
A radar interference and channel ratio technology, applied in the field of radar, can solve problems such as low anti-jamming efficiency
Active Publication Date: 2022-01-25
AIR FORCE UNIV PLA
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[0004] In view of this, the purpose of this application is to provide a radar interference suppression method, device and electronic equipment based on the channel ratio function, so as to improve the existing anti-jamming technology, which requires a priori information to identify the type of interference entering the radar receiver, which leads to anti-jamming. Interference inefficiencies
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[0028] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
[0029] It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures. Meanwhile, in the description of the present application, relative terms such as "first", "second", etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that these entities or operations, any such actual relationship or order exists. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements...
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The application relates to a radar interference suppression method, device and electronic equipment based on a channel ratio function, and belongs to the technical field of radar. The method includes: dividing the distribution range of the false target in the distance dimension into L time units equidistantly; according to the pulse compression received signal of the main channel, the pulse compressed received signal of the auxiliary channel and the channel ratio function, respectively calculate each time unit in each time unit. The mode and phase corresponding to the sampling point; respectively calculate the mean value and variance of the mode corresponding to each time unit and the mean value of the phase corresponding to the time unit; calculate according to the mean value of the mode and the mean value of the phase corresponding to the time unit with the smallest mode value or variance Interference suppression factor: The product of the pulse compression receiving signal of the main channel, the pulse compression reception signal of the auxiliary channel and the interference suppression factor is subjected to interference cancellation processing to obtain the pulse signal after interference cancellation. This method can realize interference suppression without a priori information to identify the type of interference, which effectively improves the effect of interference suppression.
Description
technical field [0001] The application belongs to the technical field of radar, and in particular relates to a radar interference suppression method, device and electronic equipment based on a channel ratio function. Background technique [0002] Modern information systems such as radar or sonar realize the transmission of information, as well as the detection, positioning, imaging, tracking and identification of targets through the modulation, emission and reception of electromagnetic waves or sound waves. For example, radar and sonar emit electromagnetic waves to radiate energy, receive echo signals reflected by objects or targets, and at the same time suppress unwanted clutter, reverberation, and interference in the background to achieve accurate detection of the target of interest. detection and tracking etc. The main lobe multi-false target jamming is one of the more common jamming in modern information systems such as radar or sonar. Among them, the main ways of main...
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IPC IPC(8): G01S7/36G01S7/02
CPCG01S7/36G01S7/02
Inventor 宫健冯广飞郭艺夺王春阳冯存前李欣肖宇季军亮原慧陈赓
Owner AIR FORCE UNIV PLA