Cooperative target direction finding and positioning system based on coding metamaterial
A cooperative target and direction-finding positioning technology, which is applied in the field of cooperative target direction-finding and positioning system based on coded metamaterials, can solve problems such as inability to quickly obtain target information, system restrictions on large-scale promotion and use, and system complexity, so as to benefit large-area Promotional use, low power consumption, and small size
Inactive Publication Date: 2021-06-22
AEROSPACE INFORMATION RES INST CAS
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like figure 1 As shown, in the prior art, the secondary response radar method is used to achieve target direction determination: the system is complex, and the system mainly includes modules such as transponder, interrogator, receiver, and response signal processing; The clutter is mixed together, and the target information cannot be obtained quickly, and the complexity of the system also restricts its large-scale promotion and use
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[0028] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. It should be understood, however, that these descriptions are exemplary only, and are not intended to limit the scope of the present disclosure. In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concepts of the present disclosure.
[0029] The terminology used herein is for the purpose of describing particular embodiments only, and is not intended to be limiting of the present disclosure. The terms "comprising", "comprising", etc. used herein indicate the presence of stated features,...
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The invention provides a cooperative target direction finding and positioning system based on a coding metamaterial, and the system is characterized in that the system comprises: a scanning receiving and transmitting antenna which is used for transmitting an electromagnetic signal to a cooperative target and receiving an electromagnetic signal returned by the cooperative target; a coding metamaterial modulation module which is used for receiving the electromagnetic signal transmitted by the scanning transceiving antenna, performing secondary modulation on the electromagnetic signal so as to separate the frequency spectrum of the cooperative target from the environment clutter frequency spectrum, and reflecting the modulated electromagnetic signal to the scanning receiving antenna, wherein the coding metamaterial modulation module is arranged on a cooperative target; and a signal processing module which is used for extracting feature information of the cooperative target from the modulated electromagnetic signal received by the scanning receiving antenna to obtain direction finding data and positioning data of the cooperative target. The invention further provides a cooperative target direction finding and positioning method based on the coding metamaterial.
Description
technical field [0001] The present disclosure relates to the technical field of electronic radar, in particular to a system and method for direction finding and positioning of cooperative targets based on coded metamaterials. Background technique [0002] The direction finding and positioning of cooperative targets are widely used in various fields such as maritime search and rescue, civil aviation communications, and specific target recognition. The traditional cooperative target direction finding and positioning mostly adopt the secondary response method to obtain target information: the radar system transmits an electromagnetic signal with specific coded information for inquiry, and the response device transmits a specific response signal after receiving the query information, and the target position, angle and other information It is passed back to the radar system to finally realize the identification and positioning of cooperative targets. [0003] Due to the aliasing...
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Login to View More IPC IPC(8): G01S13/74G01S13/87G01S7/35
CPCG01S13/74G01S13/876G01S13/872G01S7/354
Inventor 丁满来王雪梅唐跞丁赤飚曲佳萌吴蒙
Owner AEROSPACE INFORMATION RES INST CAS