Ground security radar and detection method and process
Release time:
2022-12-30
Ground security radar plays an important role in the development of space target detection and recognition technology with its inherent characteristics. It has strong real-time and rich measurement information, and can actively detect, identify and catalog space targets all day long. Ground security radar is very early, widely used radar, ground security radar has become the main equipment of various countries and regions security system. The basic task of ground security radar is to detect ground moving targets in important areas such as security and border defense. Then, let's learn about ground security radar and detection methods and processes together!
ground security radarWith its inherent characteristics, it plays an important role in the development of space target detection and recognition technology. It has strong real-time and rich measurement information, and can actively detect, identify and catalog space targets all day long. Ground security radar is very early, widely used radar, ground security radar has become the main equipment of various countries and regions security system. The basic task of ground security radar is to detect ground moving targets in important areas such as security and border defense. Then, let's learn about ground security radar and detection methods and processes together!
The structure of various ground security radars is different, but the basic form is the same, including: transmitter, receiver, antenna, processing equipment, etc. The conventional phase-controlled electronically swept radar works with sub-antennas corresponding to transmitting and receiving components one after another, that is, however, this ground surveillance radar is expensive.
Ground security radar technology to achieve the elements:
Ground security radar In view of the high cost of ground surveillance radar in the existing technology, it is necessary to provide a ground surveillance radar and detection method.
The ground security radar includes: mn sub-antennas, a frequency synthesizer, m transmitting components and m receiving components, m electronic switches and a digital processor, and the mn sub-antennas are arranged in a circular matrix. Each electronic switch includes n contact terminals and a common terminal, each contact terminal is connected to a sub-antenna, and each common terminal is connected to one of a transmitting component and a receiving component. In the embodiment of the present application, each electronic switch only needs to be controlled by the connection relationship between the contact end and the common end, so that each electronic switch only opens one channel at a time, so that only one of the n sub-antennas connected to each electronic switch can be connected to the sending component and/or the receiving component at a time, and the remaining sub-antennas connected to the sending component are disconnected from the receiving component. Then, through subsequent processing, the transmission of the radar signal and the reception of the second radar signal can be realized, so as to determine the distance and azimuth of the surveillance target. In the whole working process, mn sub-antennas only need to match m transmitting components and receiving components to determine the distance and azimuth of the monitoring target. Compared with the conventional technology, each sub-antenna needs to match one transmitting component and one receiving component, the mn sub-antenna in the embodiment of the present application only needs m transmitting components and m receiving components to complete. mn sub-antenna matching, therefore, the embodiment of the present application greatly reduces the number of transmitting components and receiving components by using electronic switches, solves the problem of high cost of ground surveillance radar. The technical problems of the prior art greatly reduce the cost of ground surveillance radar. In addition, the mn sub-antennas of the ground surveillance radar in the embodiment of the present application are arranged in a circular matrix in structure, so that not only 360 circular electrical scanning but also cross-sector electrical scanning can be implemented, and a scanning data rate is much higher than a conventional servo scanning data rate, thereby improving reliability of the ground surveillance radar in the embodiment of the present application. At the same time, the ground surveillance radar described in the embodiment of the present application avoids the use of servo equipment, and further saves costs.
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