Air target detection device based on DVB-S forward scattering characteristics
A DVB-S, forward scattering technology, applied in the field of radar target detection of external radiation sources, can solve the problems of reducing target detection accuracy, detection range and detection probability, etc., to improve the detection range and detection probability, and increase radar scattering. The effect of cross-sectional area
Active Publication Date: 2021-09-17
BEIHANG UNIV
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[0003] The existing DVB-S external radiation source radar receives the satellite direct signal by setting the reference channel antenna, the monitoring channel antenna receives the target reflection signal, uses the backscatter mode to detect the target, and uses the results of the two-way signal correlation processing to realize target detection. Backscatter signal detection makes the detection range and detection probability smaller, reducing the accuracy of target detection
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[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0025] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0026] This embodiment provides an air target detection device based on DVB-S forward scattering characteristics, such as figure 1 As shown, the device includes: a receiving antenna connected in sequence and a tar...
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The invention relates to an air target detection device based on DVB-S forward scattering characteristics. The air target detection device based on the DVB-S forward scattering characteristics comprises a receiving antenna and a target detection module which are connected in sequence, wherein the receiving antenna is used for acquiring a satellite signal in real time, and the target detection module is used for judging whether a target appears at the current moment or not according to the power of the satellite signal at the current moment and the power of the satellite signal at the previous moment. According to the invention, the target appearance detection precision is improved, and the target appearance can be detected more accurately.
Description
technical field [0001] The invention relates to the field of external radiation source radar target detection, in particular to an air target detection device based on the forward scattering characteristics of a digital video broadcasting-satellite (DVB-S). Background technique [0002] With the development of electronic information technology, the shortcomings of traditional radar systems in the face of five major threats, such as electronic interference, low-altitude / ultra-low-altitude penetration, high-speed anti-radiation missiles, high-power microwave weapons, and stealth aircraft, are reflected. As a new system radar, passive radar has the comprehensive "four resistance" capabilities of anti-jamming, anti-low-altitude penetration, anti-radiation missile and anti-stealth. Concealment and battlefield survivability are strong, and it has become one of the hot spots of research at home and abroad. [0003] The existing DVB-S external radiation source radar receives the sa...
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IPC IPC(8): G01S13/00G01S7/41
CPCG01S13/003G01S7/411Y02D30/70
Inventor 杨东凯苗铎王峰吴世玉
Owner BEIHANG UNIV