Radar system with high-array antenna as auxiliary antenna

Abstract

The invention discloses a radar system with a high-array antenna as an auxiliary antenna. The radar system comprises a radar main antenna, a first radio frequency network, a first T / R assembly, a first mixing module, a first receiver, an antenna control module, the auxiliary antenna, a second radio frequency network, a second T / R assembly, a second mixing module, a second receiver, a driving module, a rotary table and a shaft angle encoder. The radar main antenna and the auxiliary antenna are located on the rotary table; the radar main antenna, the first radio frequency network, the first T / R assembly, the first mixing module, the first receiver and the antenna control module are sequentially connected; the auxiliary antenna, the second radio frequency network, the second T / R assembly, the second mixing module, the second receiver and the antenna control module are sequentially connected. According to the radar system, the main antenna and the auxiliary antenna are designed, so that signals of the radar system are received more accurately, and receiving faults caused by errors are reduced; meanwhile, coding control is carried out over the rotary table, the rotation angle of the rotary table is made accurate, and the more accurate signal receiving function is provided.

Description

technical field [0001] The invention discloses a radar system with a high array antenna as a secondary antenna, belonging to the technical field of signal processing. Background technique [0002] There have been amazing developments in antennas and radars in recent decades, but there have been no major breakthroughs in the Basic Academy. At present, the types and forms of antennas emerge in endlessly, the performance requirements are getting higher and higher, and the application fields are constantly expanding. The urgent needs of military equipment and the national economy promote and lead the rapid development of antenna theory and technology. In many fields of modern science and technology, Automatic control technology plays an increasingly important role. The so-called automatic control refers to the use of external equipment and devices to make it, equipment or production process automatically follow the predetermined law without the direct participation of people. I...

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Problems solved by technology

[0003] The patent number is 201210517630.7, and the patent name is a radar system. This patent proposes solutions to the problems in the prior art, but the functions of the radar system in this patent are not very comprehensive and do not fully reflect the functions of the radar system.

[0004] The patent number is 201180012113.8, and the patent name is a radar system. This patent points out the problems of radar system size and cost in the prior art, and also provides a certain solution, but the solution is too idealized and does not give Specific implementation technical means

[0005] At the same time, the commonly used radar systems in the prior art generally have the problems of complex structure and high power consumption, which need further improvement

[0006] The currently designed microwave antennas generally have low gain. The main reason is that the volume of the antenna is relatively large, and the bending of the microstrip line will always cause more or less energy loss. Huge, the connection between each part will bring energy loss, these are the main reasons for the low gain of the antenna

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